72631960 has 16 divisors (see below), whose sum is σ = 163422000. Its totient is φ = 29052768.

The previous prime is 72631943. The next prime is 72631961. The reversal of 72631960 is 6913627.

It is a super-2 number, since 2×72631960² = 10550803226883200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72631961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907860 + ... + 907939.

It is an arithmetic number, because the mean of its divisors is an integer number (10213875).

Almost surely, 2^72631960 is an apocalyptic number.

It is an amenable number.

72631960 is an abundant number, since it is smaller than the sum of its proper divisors (90790040).

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

72631960 is a wasteful number, since it uses less digits than its factorization.

72631960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815810 (or 1815806 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 72631960 is about 8522.4386181421. The cubic root of 72631960 is about 417.2303779848.

The spelling of 72631960 in words is "seventy-two million, six hundred thirty-one thousand, nine hundred sixty".