22641956 has 12 divisors (see below), whose sum is σ = 40069260. Its totient is φ = 11193600.

The previous prime is 22641937. The next prime is 22641961. The reversal of 22641956 is 65914622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 9796900 = 3584^2 + 3130^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 31445 + ... + 32156.

It is an arithmetic number, because the mean of its divisors is an integer number (3339105).

Almost surely, 2^22641956 is an apocalyptic number.

It is an amenable number.

22641956 is a deficient number, since it is larger than the sum of its proper divisors (17427304).

22641956 is a wasteful number, since it uses less digits than its factorization.

22641956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63694 (or 63692 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 22641956 is about 4758.3564389398. The cubic root of 22641956 is about 282.9032786795.

The spelling of 22641956 in words is "twenty-two million, six hundred forty-one thousand, nine hundred fifty-six".