22904144 has 20 divisors (see below), whose sum is σ = 44553696. Its totient is φ = 11406432.

The previous prime is 22904143. The next prime is 22904173. The reversal of 22904144 is 44140922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22904143) 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, 1487 + ... + 6929.

Almost surely, 2^22904144 is an apocalyptic number.

It is an amenable number.

22904144 is a deficient number, since it is larger than the sum of its proper divisors (21649552).

22904144 is a wasteful number, since it uses less digits than its factorization.

22904144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5708 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22904144 is about 4785.8274101768. The cubic root of 22904144 is about 283.9910729192.

The spelling of 22904144 in words is "twenty-two million, nine hundred four thousand, one hundred forty-four".