22568868 has 144 divisors (see below), whose sum is σ = 70447104. Its totient is φ = 6181920.

The previous prime is 22568863. The next prime is 22568869. The reversal of 22568868 is 86886522.

22568868 is a `hidden beast` number, since 2 + 2 + 568 + 86 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22568863) 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 47 ways as a sum of consecutive naturals, for example, 210871 + ... + 210977.

It is an arithmetic number, because the mean of its divisors is an integer number (489216).

Almost surely, 2^22568868 is an apocalyptic number.

22568868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22568868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35223552).

22568868 is an abundant number, since it is smaller than the sum of its proper divisors (47878236).

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

22568868 is a wasteful number, since it uses less digits than its factorization.

22568868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 150 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 22568868 is about 4750.6702684990. The cubic root of 22568868 is about 282.5985476010.

It can be divided in two parts, 22568 and 868, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 22568868 in words is "twenty-two million, five hundred sixty-eight thousand, eight hundred sixty-eight".