22986656 has 96 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 8467200.

The previous prime is 22986641. The next prime is 22986661. The reversal of 22986656 is 65668922.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46571 + ... + 47061.

It is an arithmetic number, because the mean of its divisors is an integer number (619920).

Almost surely, 2^22986656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22986656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29756160).

22986656 is an abundant number, since it is smaller than the sum of its proper divisors (36525664).

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

22986656 is a wasteful number, since it uses less digits than its factorization.

22986656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 530 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 22986656 is about 4794.4401132979. The cubic root of 22986656 is about 284.3316894311.

It can be divided in two parts, 229866 and 56, that added together give a palindrome (229922).

The spelling of 22986656 in words is "twenty-two million, nine hundred eighty-six thousand, six hundred fifty-six".