22539634 has 8 divisors (see below), whose sum is σ = 36410220. Its totient is φ = 10402896.

The previous prime is 22539631. The next prime is 22539661. The reversal of 22539634 is 43693522.

It can be written as a sum of positive squares in 2 ways, for example, as 22534009 + 5625 = 4747^2 + 75^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22539634.

It is not an unprimeable number, because it can be changed into a prime (22539631) 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, 433429 + ... + 433480.

Almost surely, 2^22539634 is an apocalyptic number.

22539634 is a deficient number, since it is larger than the sum of its proper divisors (13870586).

22539634 is a wasteful number, since it uses less digits than its factorization.

22539634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866924.

The product of its digits is 38880, while the sum is 34.

The square root of 22539634 is about 4747.5924424912. The cubic root of 22539634 is about 282.4764759695.

The spelling of 22539634 in words is "twenty-two million, five hundred thirty-nine thousand, six hundred thirty-four".