22772564 has 24 divisors (see below), whose sum is σ = 42252000. Its totient is φ = 10709280.

The previous prime is 22772557. The next prime is 22772587. The reversal of 22772564 is 46527722.

It is a super-2 number, since 2×22772564² = 1037179342268192, 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 7 ways as a sum of consecutive naturals, for example, 10319 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (1760500).

Almost surely, 2^22772564 is an apocalyptic number.

It is an amenable number.

22772564 is a deficient number, since it is larger than the sum of its proper divisors (19479436).

22772564 is a wasteful number, since it uses less digits than its factorization.

22772564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2181 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 22772564 is about 4772.0607707782. The cubic root of 22772564 is about 283.4462030892.

The spelling of 22772564 in words is "twenty-two million, seven hundred seventy-two thousand, five hundred sixty-four".