22439572 has 12 divisors (see below), whose sum is σ = 39322836. Its totient is φ = 11204480.

The previous prime is 22439569. The next prime is 22439579. The reversal of 22439572 is 27593422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4343056 + 18096516 = 2084^2 + 4254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22439579) 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, 133 + ... + 6700.

It is an arithmetic number, because the mean of its divisors is an integer number (3276903).

Almost surely, 2^22439572 is an apocalyptic number.

It is an amenable number.

22439572 is a deficient number, since it is larger than the sum of its proper divisors (16883264).

22439572 is a wasteful number, since it uses less digits than its factorization.

22439572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658 (or 7656 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 22439572 is about 4737.0425372800. The cubic root of 22439572 is about 282.0578490714.

The spelling of 22439572 in words is "twenty-two million, four hundred thirty-nine thousand, five hundred seventy-two".