72870456 has 16 divisors (see below), whose sum is σ = 182176200. Its totient is φ = 24290144.

The previous prime is 72870443. The next prime is 72870461. The reversal of 72870456 is 65407827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518111 + ... + 1518158.

Almost surely, 2^72870456 is an apocalyptic number.

It is an amenable number.

72870456 is an abundant number, since it is smaller than the sum of its proper divisors (109305744).

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

72870456 is a wasteful number, since it uses less digits than its factorization.

72870456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036278 (or 3036274 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 72870456 is about 8536.4193898847. The cubic root of 72870456 is about 417.6865548484.

The spelling of 72870456 in words is "seventy-two million, eight hundred seventy thousand, four hundred fifty-six".