22881957 has 16 divisors (see below), whose sum is σ = 36071040. Its totient is φ = 12624192.

The previous prime is 22881931. The next prime is 22881959. The reversal of 22881957 is 75918822.

It is not a de Polignac number, because 22881957 - 2⁷ = 22881829 is a prime.

It is a super-2 number, since 2×22881957² = 1047167912299698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22881959) 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 15 ways as a sum of consecutive naturals, for example, 18178 + ... + 19395.

It is an arithmetic number, because the mean of its divisors is an integer number (2254440).

Almost surely, 2^22881957 is an apocalyptic number.

It is an amenable number.

22881957 is a deficient number, since it is larger than the sum of its proper divisors (13189083).

22881957 is a wasteful number, since it uses less digits than its factorization.

22881957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37612.

The product of its digits is 80640, while the sum is 42.

The square root of 22881957 is about 4783.5088585682. The cubic root of 22881957 is about 283.8993435859.

The spelling of 22881957 in words is "twenty-two million, eight hundred eighty-one thousand, nine hundred fifty-seven".