The number can be represented by HTU=100H+10T+U (hundreds, tens, units or ones).
U=T/4, H=2U=T/2. The number is 100T/2+10T+T/4.
T/4 must be a whole positive number so it can only be 4 or 8.
If it's 4 the number is 241; if it's 8 the number is 482.
Products are 8 and 64, so since 64 contains 4, you must be the number 482.