22724338 has 24 divisors (see below), whose sum is σ = 42704172. Its totient is φ = 8989344.

The previous prime is 22724329. The next prime is 22724347. The reversal of 22724338 is 83342722.

It is an interprime number because it is at equal distance from previous prime (22724329) and next prime (22724347).

It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 49 = 4767^2 + 7^2 .

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, 7645 + ... + 10192.

Almost surely, 2^22724338 is an apocalyptic number.

22724338 is a deficient number, since it is larger than the sum of its proper divisors (19979834).

22724338 is a wasteful number, since it uses less digits than its factorization.

22724338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17866 (or 17859 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 22724338 is about 4767.0051394980. The cubic root of 22724338 is about 283.2459747596.

The spelling of 22724338 in words is "twenty-two million, seven hundred twenty-four thousand, three hundred thirty-eight".