23022564 has 36 divisors (see below), whose sum is σ = 54832176. Its totient is φ = 7518368.

The previous prime is 23022557. The next prime is 23022569. The reversal of 23022564 is 46522032.

It is not an unprimeable number, because it can be changed into a prime (23022569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33367 + ... + 34049.

It is an arithmetic number, because the mean of its divisors is an integer number (1523116).

Almost surely, 2^23022564 is an apocalyptic number.

It is an amenable number.

23022564 is an abundant number, since it is smaller than the sum of its proper divisors (31809612).

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

23022564 is a wasteful number, since it uses less digits than its factorization.

23022564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 23022564 is about 4798.1834062487. The cubic root of 23022564 is about 284.4796661616.

Adding to 23022564 its reverse (46522032), we get a palindrome (69544596).

The spelling of 23022564 in words is "twenty-three million, twenty-two thousand, five hundred sixty-four".