22656812 has 6 divisors (see below), whose sum is σ = 39649428. Its totient is φ = 11328404.

The previous prime is 22656793. The next prime is 22656833. The reversal of 22656812 is 21865622.

It is a super-2 number, since 2×22656812² = 1026662260006688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832098 + ... + 2832105.

It is an arithmetic number, because the mean of its divisors is an integer number (6608238).

Almost surely, 2^22656812 is an apocalyptic number.

It is an amenable number.

22656812 is a deficient number, since it is larger than the sum of its proper divisors (16992616).

22656812 is a wasteful number, since it uses less digits than its factorization.

22656812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664207 (or 5664205 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 22656812 is about 4759.9172261711. The cubic root of 22656812 is about 282.9651386509.

The spelling of 22656812 in words is "twenty-two million, six hundred fifty-six thousand, eight hundred twelve".