22442888 has 16 divisors (see below), whose sum is σ = 45317580. Its totient is φ = 10358208.

The previous prime is 22442881. The next prime is 22442909. The reversal of 22442888 is 88824422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22108804 + 334084 = 4702^2 + 578^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22442881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107795 + ... + 108002.

Almost surely, 2^22442888 is an apocalyptic number.

It is an amenable number.

22442888 is an abundant number, since it is smaller than the sum of its proper divisors (22874692).

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

22442888 is a wasteful number, since it uses less digits than its factorization.

22442888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215816 (or 215812 counting only the distinct ones).

The product of its digits is 65536, while the sum is 38.

The square root of 22442888 is about 4737.3925317626. The cubic root of 22442888 is about 282.0717420541.

The spelling of 22442888 in words is "twenty-two million, four hundred forty-two thousand, eight hundred eighty-eight".