22438424 has 16 divisors (see below), whose sum is σ = 42136200. Its totient is φ = 11202112.

The previous prime is 22438421. The next prime is 22438433. The reversal of 22438424 is 42483422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22438421) 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, 4739 + ... + 8205.

Almost surely, 2^22438424 is an apocalyptic number.

It is an amenable number.

22438424 is a deficient number, since it is larger than the sum of its proper divisors (19697776).

22438424 is a wasteful number, since it uses less digits than its factorization.

22438424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282 (or 4278 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 22438424 is about 4736.9213630796. The cubic root of 22438424 is about 282.0530389985.

The spelling of 22438424 in words is "twenty-two million, four hundred thirty-eight thousand, four hundred twenty-four".