22992639 has 8 divisors (see below), whose sum is σ = 30738432. Its totient is φ = 15287640.

The previous prime is 22992631. The next prime is 22992647. The reversal of 22992639 is 93629922.

It is an interprime number because it is at equal distance from previous prime (22992631) and next prime (22992647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22992639 - 2³ = 22992631 is a prime.

It is a super-2 number, since 2×22992639² = 1057322896368642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22992639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22992631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8857 + ... + 11154.

It is an arithmetic number, because the mean of its divisors is an integer number (3842304).

Almost surely, 2^22992639 is an apocalyptic number.

22992639 is a deficient number, since it is larger than the sum of its proper divisors (7745793).

22992639 is a wasteful number, since it uses less digits than its factorization.

22992639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20397.

The product of its digits is 104976, while the sum is 42.

The square root of 22992639 is about 4795.0640245986. The cubic root of 22992639 is about 284.3563560453.

The spelling of 22992639 in words is "twenty-two million, nine hundred ninety-two thousand, six hundred thirty-nine".