72492972 has 24 divisors (see below), whose sum is σ = 169670592. Its totient is φ = 24090000.

The previous prime is 72492971. The next prime is 72492977. The reversal of 72492972 is 27929427.

It is not an unprimeable number, because it can be changed into a prime (72492971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5154 + ... + 13097.

It is an arithmetic number, because the mean of its divisors is an integer number (7069608).

Almost surely, 2^72492972 is an apocalyptic number.

It is an amenable number.

72492972 is an abundant number, since it is smaller than the sum of its proper divisors (97177620).

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

72492972 is a wasteful number, since it uses less digits than its factorization.

72492972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589 (or 18587 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 72492972 is about 8514.2804745909. The cubic root of 72492972 is about 416.9640716879.

The spelling of 72492972 in words is "seventy-two million, four hundred ninety-two thousand, nine hundred seventy-two".