22931130 has 32 divisors (see below), whose sum is σ = 58273344. Its totient is φ = 5755136.

The previous prime is 22931099. The next prime is 22931137. The reversal of 22931130 is 3113922.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22931097 and 22931106.

It is not an unprimeable number, because it can be changed into a prime (22931137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21972 + ... + 22991.

It is an arithmetic number, because the mean of its divisors is an integer number (1821042).

Almost surely, 2^22931130 is an apocalyptic number.

22931130 is an abundant number, since it is smaller than the sum of its proper divisors (35342214).

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

22931130 is a wasteful number, since it uses less digits than its factorization.

22931130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44990.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 22931130 is about 4788.6459464028. The cubic root of 22931130 is about 284.1025632998.

The spelling of 22931130 in words is "twenty-two million, nine hundred thirty-one thousand, one hundred thirty".