Presumably you mean in Roman numerals?
If so then the answer is VD but with an horizontal bar above the numeral V to indicate multiplication by thousand. So 5000+500 = 5500.
It's already a numeric number
4020096 IS in numeric form.
8 in numeric numbers is VIII.
Nineteen.
LXXV
(VIII)
8,400
(XXII)
MMMMMMMMMMMMMD
XCIV
we write 5 in roman number like this :- V
MM