22564724 has 24 divisors (see below), whose sum is σ = 48601728. Its totient is φ = 8926560.

The previous prime is 22564699. The next prime is 22564741. The reversal of 22564724 is 42746522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30632 + ... + 31359.

It is an arithmetic number, because the mean of its divisors is an integer number (2025072).

Almost surely, 2^22564724 is an apocalyptic number.

It is an amenable number.

22564724 is an abundant number, since it is smaller than the sum of its proper divisors (26037004).

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

22564724 is a wasteful number, since it uses less digits than its factorization.

22564724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62015 (or 62013 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 22564724 is about 4750.2340994945. The cubic root of 22564724 is about 282.5812500259.

The spelling of 22564724 in words is "twenty-two million, five hundred sixty-four thousand, seven hundred twenty-four".