22604372 has 12 divisors (see below), whose sum is σ = 45208800. Its totient is φ = 9687576.

The previous prime is 22604327. The next prime is 22604383. The reversal of 22604372 is 27340622.

22604372 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403622 + ... + 403677.

It is an arithmetic number, because the mean of its divisors is an integer number (3767400).

Almost surely, 2^22604372 is an apocalyptic number.

It is an amenable number.

22604372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22604372 is a wasteful number, since it uses less digits than its factorization.

22604372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807310 (or 807308 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22604372 is about 4754.4055359214. The cubic root of 22604372 is about 282.7466590337.

Adding to 22604372 its reverse (27340622), we get a palindrome (49944994).

The spelling of 22604372 in words is "twenty-two million, six hundred four thousand, three hundred seventy-two".