22631164 has 12 divisors (see below), whose sum is σ = 39764088. Its totient is φ = 11270000.

The previous prime is 22631143. The next prime is 22631173. The reversal of 22631164 is 46113622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10267 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (3313674).

Almost surely, 2^22631164 is an apocalyptic number.

It is an amenable number.

22631164 is a deficient number, since it is larger than the sum of its proper divisors (17132924).

22631164 is a wasteful number, since it uses less digits than its factorization.

22631164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22796 (or 22794 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 22631164 is about 4757.2222987790. Note that the first 4 decimals coincide. The cubic root of 22631164 is about 282.8583241214.

Adding to 22631164 its reverse (46113622), we get a palindrome (68744786).

The spelling of 22631164 in words is "twenty-two million, six hundred thirty-one thousand, one hundred sixty-four".