22636660 has 24 divisors (see below), whose sum is σ = 48142080. Its totient is φ = 8939424.

The previous prime is 22636631. The next prime is 22636661. The reversal of 22636660 is 6663622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22636661) 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, 5584 + ... + 8743.

It is an arithmetic number, because the mean of its divisors is an integer number (2005920).

Almost surely, 2^22636660 is an apocalyptic number.

22636660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22636660 is an abundant number, since it is smaller than the sum of its proper divisors (25505420).

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

22636660 is a wasteful number, since it uses less digits than its factorization.

22636660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415 (or 14413 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 22636660 is about 4757.7999117239. The cubic root of 22636660 is about 282.8812197403.

The spelling of 22636660 in words is "twenty-two million, six hundred thirty-six thousand, six hundred sixty".