72470832 has 40 divisors (see below), whose sum is σ = 213962496. Its totient is φ = 20705856.

The previous prime is 72470809. The next prime is 72470843. The reversal of 72470832 is 23807427.

It is a junction number, because it is equal to n+sod(n) for n = 72470793 and 72470802.

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, 107508 + ... + 108179.

Almost surely, 2^72470832 is an apocalyptic number.

It is an amenable number.

72470832 is an abundant number, since it is smaller than the sum of its proper divisors (141491664).

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

72470832 is a wasteful number, since it uses less digits than its factorization.

72470832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215705 (or 215699 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 72470832 is about 8512.9802067196. The cubic root of 72470832 is about 416.9216191841.

The spelling of 72470832 in words is "seventy-two million, four hundred seventy thousand, eight hundred thirty-two".