22866636 has 24 divisors (see below), whose sum is σ = 57460144. Its totient is φ = 7035840.

The previous prime is 22866619. The next prime is 22866647. The reversal of 22866636 is 63666822.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 22866594 and 22866603.

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, 73135 + ... + 73446.

Almost surely, 2^22866636 is an apocalyptic number.

22866636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22866636 is an abundant number, since it is smaller than the sum of its proper divisors (34593508).

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

22866636 is a wasteful number, since it uses less digits than its factorization.

22866636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146601 (or 146599 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 22866636 is about 4781.9071509179. The cubic root of 22866636 is about 283.8359662418.

The spelling of 22866636 in words is "twenty-two million, eight hundred sixty-six thousand, six hundred thirty-six".