72038684 has 12 divisors (see below), whose sum is σ = 126133224. Its totient is φ = 36000624.

The previous prime is 72038683. The next prime is 72038689. The reversal of 72038684 is 48683027.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72038683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7502 + ... + 14154.

It is an arithmetic number, because the mean of its divisors is an integer number (10511102).

Almost surely, 2^72038684 is an apocalyptic number.

It is an amenable number.

72038684 is a deficient number, since it is larger than the sum of its proper divisors (54094540).

72038684 is a wasteful number, since it uses less digits than its factorization.

72038684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9364 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 72038684 is about 8487.5605447031. The cubic root of 72038684 is about 416.0912567919.

The spelling of 72038684 in words is "seventy-two million, thirty-eight thousand, six hundred eighty-four".