72442404 has 24 divisors (see below), whose sum is σ = 187813920. Its totient is φ = 24147432.

The previous prime is 72442399. The next prime is 72442417. The reversal of 72442404 is 40424427.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335274 + ... + 335489.

It is an arithmetic number, because the mean of its divisors is an integer number (7825580).

Almost surely, 2^72442404 is an apocalyptic number.

It is an amenable number.

72442404 is an abundant number, since it is smaller than the sum of its proper divisors (115371516).

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

72442404 is a wasteful number, since it uses less digits than its factorization.

72442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670776 (or 670768 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 72442404 is about 8511.3103574009. The cubic root of 72442404 is about 416.8670970287.

The spelling of 72442404 in words is "seventy-two million, four hundred forty-two thousand, four hundred four".