72904444 has 12 divisors (see below), whose sum is σ = 134297800. Its totient is φ = 34533648.

The previous prime is 72904441. The next prime is 72904459. The reversal of 72904444 is 44440927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72904441) 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, 479559 + ... + 479710.

Almost surely, 2^72904444 is an apocalyptic number.

It is an amenable number.

72904444 is a deficient number, since it is larger than the sum of its proper divisors (61393356).

72904444 is a wasteful number, since it uses less digits than its factorization.

72904444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959292 (or 959290 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 72904444 is about 8538.4099222279. The cubic root of 72904444 is about 417.7514834209.

The spelling of 72904444 in words is "seventy-two million, nine hundred four thousand, four hundred forty-four".