22439244 has 24 divisors (see below), whose sum is σ = 52537408. Its totient is φ = 7454160.

The previous prime is 22439231. The next prime is 22439281. The reversal of 22439244 is 44293422.

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, 639 + ... + 6729.

Almost surely, 2^22439244 is an apocalyptic number.

It is an amenable number.

22439244 is an abundant number, since it is smaller than the sum of its proper divisors (30098164).

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

22439244 is a wasteful number, since it uses less digits than its factorization.

22439244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405 (or 6403 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 22439244 is about 4737.0079163962. The cubic root of 22439244 is about 282.0564747816.

The spelling of 22439244 in words is "twenty-two million, four hundred thirty-nine thousand, two hundred forty-four".