22087372 has 12 divisors (see below), whose sum is σ = 39697840. Its totient is φ = 10745136.

The previous prime is 22087361. The next prime is 22087411. The reversal of 22087372 is 27378022.

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, 74472 + ... + 74767.

Almost surely, 2^22087372 is an apocalyptic number.

It is an amenable number.

22087372 is a deficient number, since it is larger than the sum of its proper divisors (17610468).

22087372 is a wasteful number, since it uses less digits than its factorization.

22087372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149280 (or 149278 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 22087372 is about 4699.7204172163. The cubic root of 22087372 is about 280.5743821515.

The spelling of 22087372 in words is "twenty-two million, eighty-seven thousand, three hundred seventy-two".