22805144 has 16 divisors (see below), whose sum is σ = 44619120. Its totient is φ = 10906720.

The previous prime is 22805131. The next prime is 22805171. The reversal of 22805144 is 44150822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61787 + ... + 62154.

It is an arithmetic number, because the mean of its divisors is an integer number (2788695).

Almost surely, 2^22805144 is an apocalyptic number.

It is an amenable number.

22805144 is a deficient number, since it is larger than the sum of its proper divisors (21813976).

22805144 is a wasteful number, since it uses less digits than its factorization.

22805144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123970 (or 123966 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 22805144 is about 4775.4731702733. The cubic root of 22805144 is about 283.5813112377.

Adding to 22805144 its reverse (44150822), we get a palindrome (66955966).

The spelling of 22805144 in words is "twenty-two million, eight hundred five thousand, one hundred forty-four".