72373504 has 36 divisors (see below), whose sum is σ = 165106144. Its totient is φ = 31016448.

The previous prime is 72373447. The next prime is 72373507. The reversal of 72373504 is 40537327.

It is a hoax number, since the sum of its digits (31) 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 (72373507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18402 + ... + 21985.

Almost surely, 2^72373504 is an apocalyptic number.

It is an amenable number.

72373504 is an abundant number, since it is smaller than the sum of its proper divisors (92732640).

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

72373504 is an equidigital number, since it uses as much as digits as its factorization.

72373504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40410 (or 40396 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 72373504 is about 8507.2618391584. The cubic root of 72373504 is about 416.7348942851.

The spelling of 72373504 in words is "seventy-two million, three hundred seventy-three thousand, five hundred four".