22539345 has 16 divisors (see below), whose sum is σ = 36149760. Its totient is φ = 11992064.

The previous prime is 22539323. The next prime is 22539359. The reversal of 22539345 is 54393522.

It is a cyclic number.

It is not a de Polignac number, because 22539345 - 2⁵ = 22539313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5617 + ... + 8753.

It is an arithmetic number, because the mean of its divisors is an integer number (2259360).

Almost surely, 2^22539345 is an apocalyptic number.

It is an amenable number.

22539345 is a deficient number, since it is larger than the sum of its proper divisors (13610415).

22539345 is a wasteful number, since it uses less digits than its factorization.

22539345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624.

The product of its digits is 32400, while the sum is 33.

The square root of 22539345 is about 4747.5620059142. The cubic root of 22539345 is about 282.4752686732.

The spelling of 22539345 in words is "twenty-two million, five hundred thirty-nine thousand, three hundred forty-five".