22338864 has 60 divisors (see below), whose sum is σ = 63719136. Its totient is φ = 7303296.

The previous prime is 22338853. The next prime is 22338913. The reversal of 22338864 is 46883322.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6169 + ... + 9095.

Almost surely, 2^22338864 is an apocalyptic number.

22338864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22338864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31859568).

22338864 is an abundant number, since it is smaller than the sum of its proper divisors (41380272).

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

22338864 is a wasteful number, since it uses less digits than its factorization.

22338864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2985 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 22338864 is about 4726.4007447528. The cubic root of 22338864 is about 281.6352610589.

The spelling of 22338864 in words is "twenty-two million, three hundred thirty-eight thousand, eight hundred sixty-four".