72970304 has 28 divisors (see below), whose sum is σ = 157965648. Its totient is φ = 33168000.

The previous prime is 72970277. The next prime is 72970319. The reversal of 72970304 is 40307927.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51122 + ... + 52529.

Almost surely, 2^72970304 is an apocalyptic number.

It is an amenable number.

72970304 is an abundant number, since it is smaller than the sum of its proper divisors (84995344).

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

72970304 is a wasteful number, since it uses less digits than its factorization.

72970304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103674 (or 103664 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 72970304 is about 8542.2657415934. The cubic root of 72970304 is about 417.8772408757.

The spelling of 72970304 in words is "seventy-two million, nine hundred seventy thousand, three hundred four".