72312474 has 16 divisors (see below), whose sum is σ = 155750112. Its totient is φ = 22249968.

The previous prime is 72312379. The next prime is 72312521. The reversal of 72312474 is 47421327.

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, 463464 + ... + 463619.

It is an arithmetic number, because the mean of its divisors is an integer number (9734382).

Almost surely, 2^72312474 is an apocalyptic number.

72312474 is an abundant number, since it is smaller than the sum of its proper divisors (83437638).

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

72312474 is a wasteful number, since it uses less digits than its factorization.

72312474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927101.

The product of its digits is 9408, while the sum is 30.

The square root of 72312474 is about 8503.6741470967. The cubic root of 72312474 is about 416.6177221086.

The spelling of 72312474 in words is "seventy-two million, three hundred twelve thousand, four hundred seventy-four".