22332564 has 24 divisors (see below), whose sum is σ = 57899520. Its totient is φ = 7444152.

The previous prime is 22332551. The next prime is 22332593. The reversal of 22332564 is 46523322.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 103284 + ... + 103499.

It is an arithmetic number, because the mean of its divisors is an integer number (2412480).

Almost surely, 2^22332564 is an apocalyptic number.

It is an amenable number.

22332564 is an abundant number, since it is smaller than the sum of its proper divisors (35566956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22332564 is a wasteful number, since it uses less digits than its factorization.

22332564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206796 (or 206788 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22332564 is about 4725.7342286675. The cubic root of 22332564 is about 281.6087830045.

Adding to 22332564 its reverse (46523322), we get a palindrome (68855886).

The spelling of 22332564 in words is "twenty-two million, three hundred thirty-two thousand, five hundred sixty-four".