22636874 has 12 divisors (see below), whose sum is σ = 36768726. Its totient is φ = 10447632.

The previous prime is 22636871. The next prime is 22636919. The reversal of 22636874 is 47863622.

It can be written as a sum of positive squares in 3 ways, for example, as 8082649 + 14554225 = 2843^2 + 3815^2 .

It is not an unprimeable number, because it can be changed into a prime (22636871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33149 + ... + 33824.

Almost surely, 2^22636874 is an apocalyptic number.

22636874 is a deficient number, since it is larger than the sum of its proper divisors (14131852).

22636874 is a wasteful number, since it uses less digits than its factorization.

22636874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67001 (or 66988 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 22636874 is about 4757.8224010570. The cubic root of 22636874 is about 282.8821111614.

The spelling of 22636874 in words is "twenty-two million, six hundred thirty-six thousand, eight hundred seventy-four".