22288868 has 24 divisors (see below), whose sum is σ = 44688000. Its totient is φ = 9528768.

The previous prime is 22288867. The next prime is 22288879. The reversal of 22288868 is 86888222.

It is not an unprimeable number, because it can be changed into a prime (22288867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15233 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (1862000).

Almost surely, 2^22288868 is an apocalyptic number.

22288868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22288868 is an abundant number, since it is smaller than the sum of its proper divisors (22399132).

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

22288868 is a wasteful number, since it uses less digits than its factorization.

22288868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1977 counting only the distinct ones).

The product of its digits is 196608, while the sum is 44.

The square root of 22288868 is about 4721.1087680756. The cubic root of 22288868 is about 281.4249973963.

The spelling of 22288868 in words is "twenty-two million, two hundred eighty-eight thousand, eight hundred sixty-eight".