22715204 has 12 divisors (see below), whose sum is σ = 39813228. Its totient is φ = 11340000.

The previous prime is 22715201. The next prime is 22715221. The reversal of 22715204 is 40251722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21808900 + 906304 = 4670^2 + 952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22715204.

It is not an unprimeable number, because it can be changed into a prime (22715201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (3317769).

Almost surely, 2^22715204 is an apocalyptic number.

It is an amenable number.

22715204 is a deficient number, since it is larger than the sum of its proper divisors (17098024).

22715204 is a wasteful number, since it uses less digits than its factorization.

22715204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806 (or 8804 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 22715204 is about 4766.0469993486. The cubic root of 22715204 is about 283.2080196320.

Adding to 22715204 its reverse (40251722), we get a palindrome (62966926).

The spelling of 22715204 in words is "twenty-two million, seven hundred fifteen thousand, two hundred four".