72222704 has 20 divisors (see below), whose sum is σ = 140118264. Its totient is φ = 36063168.

The previous prime is 72222697. The next prime is 72222713. The reversal of 72222704 is 40722227.

It is a happy number.

It is a super-2 number, since 2×72222704² = 10432237946143232, which contains 22 as substring.

It is a congruent number.

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, 11459 + ... + 16605.

Almost surely, 2^72222704 is an apocalyptic number.

It is an amenable number.

72222704 is a deficient number, since it is larger than the sum of its proper divisors (67895560).

72222704 is a wasteful number, since it uses less digits than its factorization.

72222704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 72222704 is about 8498.3942012594. The cubic root of 72222704 is about 416.4452518197.

The spelling of 72222704 in words is "seventy-two million, two hundred twenty-two thousand, seven hundred four".