22573732 has 12 divisors (see below), whose sum is σ = 39733596. Its totient is φ = 11221280.

The previous prime is 22573709. The next prime is 22573757. The reversal of 22573732 is 23737522.

It can be written as a sum of positive squares in 2 ways, for example, as 17438976 + 5134756 = 4176^2 + 2266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22573694 and 22573703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15619 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (3311133).

Almost surely, 2^22573732 is an apocalyptic number.

It is an amenable number.

22573732 is a deficient number, since it is larger than the sum of its proper divisors (17159864).

22573732 is a wasteful number, since it uses less digits than its factorization.

22573732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32798 (or 32796 counting only the distinct ones).

The product of its digits is 17640, while the sum is 31.

The square root of 22573732 is about 4751.1821686818. The cubic root of 22573732 is about 282.6188478452.

The spelling of 22573732 in words is "twenty-two million, five hundred seventy-three thousand, seven hundred thirty-two".