22657233 has 8 divisors (see below), whose sum is σ = 30244096. Its totient is φ = 15087600.

The previous prime is 22657213. The next prime is 22657237. The reversal of 22657233 is 33275622.

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

It is not a de Polignac number, because 22657233 - 2²¹ = 20560081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22657233.

It is not an unprimeable number, because it can be changed into a prime (22657237) 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 7 ways as a sum of consecutive naturals, for example, 838 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (3780512).

Almost surely, 2^22657233 is an apocalyptic number.

It is an amenable number.

22657233 is a deficient number, since it is larger than the sum of its proper divisors (7586863).

22657233 is an equidigital number, since it uses as much as digits as its factorization.

22657233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8615.

The product of its digits is 15120, while the sum is 30.

The square root of 22657233 is about 4759.9614494237. The cubic root of 22657233 is about 282.9668912892.

The spelling of 22657233 in words is "twenty-two million, six hundred fifty-seven thousand, two hundred thirty-three".