22457232 has 60 divisors (see below), whose sum is σ = 71830720. Its totient is φ = 6416064.

The previous prime is 22457219. The next prime is 22457273. The reversal of 22457232 is 23275422.

It is a junction number, because it is equal to n+sod(n) for n = 22457196 and 22457205.

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, 10132 + ... + 12147.

Almost surely, 2^22457232 is an apocalyptic number.

It is an amenable number.

22457232 is an abundant number, since it is smaller than the sum of its proper divisors (49373488).

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

22457232 is a wasteful number, since it uses less digits than its factorization.

22457232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22300 (or 22291 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 22457232 is about 4738.9062029122. The cubic root of 22457232 is about 282.1318230827.

The spelling of 22457232 in words is "twenty-two million, four hundred fifty-seven thousand, two hundred thirty-two".