22532864 has 18 divisors (see below), whose sum is σ = 44978220. Its totient is φ = 11266304.

The previous prime is 22532857. The next prime is 22532869. The reversal of 22532864 is 46823522.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 22532864.

It is not an unprimeable number, because it can be changed into a prime (22532869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43754 + ... + 44265.

It is an arithmetic number, because the mean of its divisors is an integer number (2498790).

Almost surely, 2^22532864 is an apocalyptic number.

It is an amenable number.

22532864 is a deficient number, since it is larger than the sum of its proper divisors (22445356).

22532864 is an frugal number, since it uses more digits than its factorization.

22532864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88035 (or 88021 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 22532864 is about 4746.8793959822. The cubic root of 22532864 is about 282.4481916114.

The spelling of 22532864 in words is "twenty-two million, five hundred thirty-two thousand, eight hundred sixty-four".