22904474 has 24 divisors (see below), whose sum is σ = 37642644. Its totient is φ = 10416000.

The previous prime is 22904473. The next prime is 22904489. The reversal of 22904474 is 47440922.

It can be written as a sum of positive squares in 2 ways, for example, as 20205025 + 2699449 = 4495^2 + 1643^2 .

It is a super-2 number, since 2×22904474² = 1049229858433352, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22904474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22904473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32324 + ... + 33024.

Almost surely, 2^22904474 is an apocalyptic number.

22904474 is a deficient number, since it is larger than the sum of its proper divisors (14738170).

22904474 is a wasteful number, since it uses less digits than its factorization.

22904474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22904474 is about 4785.8618868496. The cubic root of 22904474 is about 283.9924368151.

The spelling of 22904474 in words is "twenty-two million, nine hundred four thousand, four hundred seventy-four".