22057008 has 20 divisors (see below), whose sum is σ = 56980728. Its totient is φ = 7352320.

The previous prime is 22056989. The next prime is 22057019. The reversal of 22057008 is 80075022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229713 + ... + 229808.

Almost surely, 2^22057008 is an apocalyptic number.

It is an amenable number.

22057008 is an abundant number, since it is smaller than the sum of its proper divisors (34923720).

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

22057008 is a wasteful number, since it uses less digits than its factorization.

22057008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459532 (or 459526 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 22057008 is about 4696.4889012964. The cubic root of 22057008 is about 280.4457525822.

The spelling of 22057008 in words is "twenty-two million, fifty-seven thousand, eight".