22959209 has 16 divisors (see below), whose sum is σ = 28455168. Its totient is φ = 18038592.

The previous prime is 22959161. The next prime is 22959247. The reversal of 22959209 is 90295922.

It is a happy number.

It is not a de Polignac number, because 22959209 - 2²⁰ = 21910633 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22959259) 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 15 ways as a sum of consecutive naturals, for example, 13484 + ... + 15090.

It is an arithmetic number, because the mean of its divisors is an integer number (1778448).

Almost surely, 2^22959209 is an apocalyptic number.

It is an amenable number.

22959209 is a deficient number, since it is larger than the sum of its proper divisors (5495959).

22959209 is a wasteful number, since it uses less digits than its factorization.

22959209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 22959209 is about 4791.5768803182. The cubic root of 22959209 is about 284.2184765007.

The spelling of 22959209 in words is "twenty-two million, nine hundred fifty-nine thousand, two hundred nine".