22656489 has 8 divisors (see below), whose sum is σ = 30591360. Its totient is φ = 14912976.

The previous prime is 22656467. The next prime is 22656503. The reversal of 22656489 is 98465622.

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

It is not a de Polignac number, because 22656489 - 2⁸ = 22656233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22656489.

It is not an unprimeable number, because it can be changed into a prime (22656089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47562 + ... + 48035.

It is an arithmetic number, because the mean of its divisors is an integer number (3823920).

Almost surely, 2^22656489 is an apocalyptic number.

It is an amenable number.

22656489 is a deficient number, since it is larger than the sum of its proper divisors (7934871).

22656489 is an equidigital number, since it uses as much as digits as its factorization.

22656489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95679.

The product of its digits is 207360, while the sum is 42.

The square root of 22656489 is about 4759.8832968887. The cubic root of 22656489 is about 282.9637939755.

The spelling of 22656489 in words is "twenty-two million, six hundred fifty-six thousand, four hundred eighty-nine".