22815952 has 40 divisors (see below), whose sum is σ = 45582152. Its totient is φ = 11059200.

The previous prime is 22815913. The next prime is 22815959. The reversal of 22815952 is 25951822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 21939856 = 936^2 + 4684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22815959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94552 + ... + 94792.

Almost surely, 2^22815952 is an apocalyptic number.

It is an amenable number.

22815952 is a deficient number, since it is larger than the sum of its proper divisors (22766200).

22815952 is a wasteful number, since it uses less digits than its factorization.

22815952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 401 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 22815952 is about 4776.6046518421. The cubic root of 22815952 is about 283.6261032190.

The spelling of 22815952 in words is "twenty-two million, eight hundred fifteen thousand, nine hundred fifty-two".