22681432 has 16 divisors (see below), whose sum is σ = 42926760. Its totient is φ = 11234304.

The previous prime is 22681397. The next prime is 22681433. The reversal of 22681432 is 23418622.

It is a self number, because there is not a number n which added to its sum of digits gives 22681432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22681433) 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, 12393 + ... + 14104.

Almost surely, 2^22681432 is an apocalyptic number.

It is an amenable number.

22681432 is a deficient number, since it is larger than the sum of its proper divisors (20245328).

22681432 is a wasteful number, since it uses less digits than its factorization.

22681432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26610 (or 26606 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 22681432 is about 4762.5027034113. The cubic root of 22681432 is about 283.0675961343.

The spelling of 22681432 in words is "twenty-two million, six hundred eighty-one thousand, four hundred thirty-two".