22534864 has 40 divisors (see below), whose sum is σ = 48434400. Its totient is φ = 10070400.

The previous prime is 22534859. The next prime is 22534879. The reversal of 22534864 is 46843522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (1210860).

Almost surely, 2^22534864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22534864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24217200).

22534864 is an abundant number, since it is smaller than the sum of its proper divisors (25899536).

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

22534864 is a wasteful number, since it uses less digits than its factorization.

22534864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2173 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 22534864 is about 4747.0900560238. The cubic root of 22534864 is about 282.4565479936.

It can be divided in two parts, 2253 and 4864, that added together give a palindrome (7117).

The spelling of 22534864 in words is "twenty-two million, five hundred thirty-four thousand, eight hundred sixty-four".