22644465 has 8 divisors (see below), whose sum is σ = 36231168. Its totient is φ = 12077040.

The previous prime is 22644451. The next prime is 22644487. The reversal of 22644465 is 56444622.

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

It is not a de Polignac number, because 22644465 - 2⁷ = 22644337 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 754801 + ... + 754830.

It is an arithmetic number, because the mean of its divisors is an integer number (4528896).

Almost surely, 2^22644465 is an apocalyptic number.

It is an amenable number.

22644465 is a deficient number, since it is larger than the sum of its proper divisors (13586703).

22644465 is a wasteful number, since it uses less digits than its factorization.

22644465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509639.

The product of its digits is 46080, while the sum is 33.

The square root of 22644465 is about 4758.6200730884. The cubic root of 22644465 is about 282.9137279845.

The spelling of 22644465 in words is "twenty-two million, six hundred forty-four thousand, four hundred sixty-five".