22057992 has 48 divisors (see below), whose sum is σ = 65173680. Its totient is φ = 6684000.

The previous prime is 22057969. The next prime is 22058039. The reversal of 22057992 is 29975022.

It is a super-2 number, since 2×22057992² = 973110022144128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 13134 + ... + 14717.

It is an arithmetic number, because the mean of its divisors is an integer number (1357785).

Almost surely, 2^22057992 is an apocalyptic number.

22057992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22057992 is an abundant number, since it is smaller than the sum of its proper divisors (43115688).

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

22057992 is a wasteful number, since it uses less digits than its factorization.

22057992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27874 (or 27867 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 22057992 is about 4696.5936592386. The cubic root of 22057992 is about 280.4499229048.

The spelling of 22057992 in words is "twenty-two million, fifty-seven thousand, nine hundred ninety-two".