72913456 has 40 divisors (see below), whose sum is σ = 176131584. Its totient is φ = 28407360.

The previous prime is 72913433. The next prime is 72913481. The reversal of 72913456 is 65431927.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28360 + ... + 30823.

Almost surely, 2^72913456 is an apocalyptic number.

It is an amenable number.

72913456 is an abundant number, since it is smaller than the sum of its proper divisors (103218128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72913456 is a wasteful number, since it uses less digits than its factorization.

72913456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59209 (or 59203 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 72913456 is about 8538.9376388401. The cubic root of 72913456 is about 417.7686960033.

It can be divided in two parts, 729 and 13456, that multiplied together give a square (9809424 = 3132²).

The spelling of 72913456 in words is "seventy-two million, nine hundred thirteen thousand, four hundred fifty-six".