72272932 has 6 divisors (see below), whose sum is σ = 126477638. Its totient is φ = 36136464.

The previous prime is 72272929. The next prime is 72272939. The reversal of 72272932 is 23927227.

It can be written as a sum of positive squares in only one way, i.e., 71470116 + 802816 = 8454^2 + 896^2 .

It is not an unprimeable number, because it can be changed into a prime (72272939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034113 + ... + 9034120.

Almost surely, 2^72272932 is an apocalyptic number.

It is an amenable number.

72272932 is a deficient number, since it is larger than the sum of its proper divisors (54204706).

72272932 is a wasteful number, since it uses less digits than its factorization.

72272932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18068237 (or 18068235 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 72272932 is about 8501.3488341557. The cubic root of 72272932 is about 416.5417697834.

The spelling of 72272932 in words is "seventy-two million, two hundred seventy-two thousand, nine hundred thirty-two".