22568636 has 12 divisors (see below), whose sum is σ = 40413912. Its totient is φ = 11021808.

The previous prime is 22568633. The next prime is 22568653. The reversal of 22568636 is 63686522.

It is a self number, because there is not a number n which added to its sum of digits gives 22568636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22568633) 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, 65435 + ... + 65778.

It is an arithmetic number, because the mean of its divisors is an integer number (3367826).

Almost surely, 2^22568636 is an apocalyptic number.

It is an amenable number.

22568636 is a deficient number, since it is larger than the sum of its proper divisors (17845276).

22568636 is a wasteful number, since it uses less digits than its factorization.

22568636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131260 (or 131258 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 22568636 is about 4750.6458508291. The cubic root of 22568636 is about 282.5975792599.

The spelling of 22568636 in words is "twenty-two million, five hundred sixty-eight thousand, six hundred thirty-six".