72322474 has 32 divisors (see below), whose sum is σ = 133562880. Its totient is φ = 28676592.

The previous prime is 72322469. The next prime is 72322489. The reversal of 72322474 is 47422327.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8277 + ... + 14599.

It is an arithmetic number, because the mean of its divisors is an integer number (4173840).

Almost surely, 2^72322474 is an apocalyptic number.

72322474 is a deficient number, since it is larger than the sum of its proper divisors (61240406).

72322474 is a wasteful number, since it uses less digits than its factorization.

72322474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394.

The product of its digits is 18816, while the sum is 31.

The square root of 72322474 is about 8504.2621079080. The cubic root of 72322474 is about 416.6369257350.

The spelling of 72322474 in words is "seventy-two million, three hundred twenty-two thousand, four hundred seventy-four".