72204832 has 36 divisors (see below), whose sum is σ = 165365550. Its totient is φ = 30944256.

The previous prime is 72204829. The next prime is 72204851. The reversal of 72204832 is 23840227.

It can be written as a sum of positive squares in only one way, i.e., 71978256 + 226576 = 8484^2 + 476^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 72204832.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21457 + ... + 24592.

Almost surely, 2^72204832 is an apocalyptic number.

It is an amenable number.

72204832 is an abundant number, since it is smaller than the sum of its proper divisors (93160718).

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

72204832 is a wasteful number, since it uses less digits than its factorization.

72204832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46073 (or 46058 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 72204832 is about 8497.3426434386. The cubic root of 72204832 is about 416.4108982479.

The spelling of 72204832 in words is "seventy-two million, two hundred four thousand, eight hundred thirty-two".