22156072 has 32 divisors (see below), whose sum is σ = 43948800. Its totient is φ = 10454400.

The previous prime is 22156027. The next prime is 22156111. The reversal of 22156072 is 27065122.

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, 9079 + ... + 11257.

It is an arithmetic number, because the mean of its divisors is an integer number (1373400).

Almost surely, 2^22156072 is an apocalyptic number.

It is an amenable number.

22156072 is a deficient number, since it is larger than the sum of its proper divisors (21792728).

22156072 is a wasteful number, since it uses less digits than its factorization.

22156072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 22156072 is about 4707.0236880645. The cubic root of 22156072 is about 280.8649782121.

The spelling of 22156072 in words is "twenty-two million, one hundred fifty-six thousand, seventy-two".