22539536 has 20 divisors (see below), whose sum is σ = 43896000. Its totient is φ = 11211552.

The previous prime is 22539533. The next prime is 22539551. The reversal of 22539536 is 63593522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22539496 and 22539505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22539533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (2194800).

Almost surely, 2^22539536 is an apocalyptic number.

It is an amenable number.

22539536 is a deficient number, since it is larger than the sum of its proper divisors (21356464).

22539536 is a wasteful number, since it uses less digits than its factorization.

22539536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286 (or 7280 counting only the distinct ones).

The product of its digits is 48600, while the sum is 35.

The square root of 22539536 is about 4747.5821214593. The cubic root of 22539536 is about 282.4760665761.

The spelling of 22539536 in words is "twenty-two million, five hundred thirty-nine thousand, five hundred thirty-six".