22664868 has 24 divisors (see below), whose sum is σ = 54315072. Its totient is φ = 7350624.

The previous prime is 22664861. The next prime is 22664879. The reversal of 22664868 is 86846622.

It is not an unprimeable number, because it can be changed into a prime (22664861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25080 + ... + 25967.

It is an arithmetic number, because the mean of its divisors is an integer number (2263128).

Almost surely, 2^22664868 is an apocalyptic number.

It is an amenable number.

22664868 is an abundant number, since it is smaller than the sum of its proper divisors (31650204).

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

22664868 is a wasteful number, since it uses less digits than its factorization.

22664868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51091 (or 51089 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 22664868 is about 4760.7633841644. The cubic root of 22664868 is about 282.9986723042.

It can be divided in two parts, 22664 and 868, that added together give a palindrome (23532).

The spelling of 22664868 in words is "twenty-two million, six hundred sixty-four thousand, eight hundred sixty-eight".