72399204 has 24 divisors (see below), whose sum is σ = 187701920. Its totient is φ = 24133032.

The previous prime is 72399203. The next prime is 72399211. The reversal of 72399204 is 40299327.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (72399203) 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 in 7 ways as a sum of consecutive naturals, for example, 335074 + ... + 335289.

Almost surely, 2^72399204 is an apocalyptic number.

It is an amenable number.

72399204 is an abundant number, since it is smaller than the sum of its proper divisors (115302716).

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

72399204 is a wasteful number, since it uses less digits than its factorization.

72399204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670376 (or 670368 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 72399204 is about 8508.7721793453. The cubic root of 72399204 is about 416.7842162917.

The spelling of 72399204 in words is "seventy-two million, three hundred ninety-nine thousand, two hundred four".