22805644 has 12 divisors (see below), whose sum is σ = 40225024. Its totient is φ = 11312784.

The previous prime is 22805639. The next prime is 22805647. The reversal of 22805644 is 44650822.

It is not an unprimeable number, because it can be changed into a prime (22805647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21939 + ... + 22954.

Almost surely, 2^22805644 is an apocalyptic number.

It is an amenable number.

22805644 is a deficient number, since it is larger than the sum of its proper divisors (17419380).

22805644 is a wasteful number, since it uses less digits than its factorization.

22805644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45024 (or 45022 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 22805644 is about 4775.5255208197. The cubic root of 22805644 is about 283.5833837177.

The spelling of 22805644 in words is "twenty-two million, eight hundred five thousand, six hundred forty-four".