FILE NO. 333-44173
                                                                  RULE 424(B)(3)
 
                             PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED JANUARY 29, 1998 AND PROSPECTUS SUPPLEMENT DATED MARCH 12,
                                     1998)
                                     PROSPECTUS NUMBER: 1732
 
 
                           MERRILL LYNCH & CO., INC.
                          MEDIUM-TERM NOTES, SERIES B
                   DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
 
                                FIXED RATE NOTES
 
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<S>                      <C>
 
PRINCIPAL AMOUNT:        $173,000,000
 
 
CUSIP NUMBER:            59018SK86
 
 
INTEREST RATE:           0.00000%
 
 
ORIGINAL ISSUE DATE:     June 19, 1998
 
 
STATED MATURITY DATE:    July 2, 2001
 
 
INTEREST PAYMENT DATES:  Accrued interest will only be paid on the Maturity Date, subject to the following
                         business day convention. No interim payments will be made (except as provided for
                         below).
 
 
OTHER PROVISIONS:        Notwithstanding any other provision contained in this Note, if an Event of Default (as
                         defined in the Indenture) with respect to the Notes shall occur and be continuing and
                         the principal of all the Notes is declared due and payable in the manner and with the
                         effect provided in the Indenture, "principal" with respect to this Note in determining
                         any amount then declared due and payable shall mean the Issue Price of this Note plus
                         that portion of the accrued Original Issue Discount attributable to the period from the
                         Original Issue Date to the date of acceleration (calculated on a semi-annual bond
                         equivalent basis using a year composed of twelve 30-day months). Issue Price shall
                         equal $145,044,930 and the Original Issue Discount shall equal $27,955,070.
 
 
 
REPAYMENT AT THE OPTION
OF THE HOLDER:           The Notes cannot be repaid prior to the Stated Maturity Date.
 
 
REDEMPTION AT THE OPTION
OF THE COMPANY:          The Notes cannot be redeemed prior to the Stated Maturity Date.
 
 
FORM:                    The Notes are being issued in fully registered book-entry form.
 
 
TRUSTEE:                 The Chase Manhattan Bank
 
 
DATED:                   June 16, 1998
 
 
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