22568988 has 48 divisors (see below), whose sum is σ = 57075200. Its totient is φ = 6899904.

The previous prime is 22568971. The next prime is 22569007. The reversal of 22568988 is 88986522.

It is a congruent number.

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, 30681 + ... + 31407.

Almost surely, 2^22568988 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 22568988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28537600).

22568988 is an abundant number, since it is smaller than the sum of its proper divisors (34506212).

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

22568988 is a wasteful number, since it uses less digits than its factorization.

22568988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 944 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 22568988 is about 4750.6828982789. The cubic root of 22568988 is about 282.5990484644.

The spelling of 22568988 in words is "twenty-two million, five hundred sixty-eight thousand, nine hundred eighty-eight".