23144904 has 48 divisors (see below), whose sum is σ = 62906220. Its totient is φ = 7687680.

The previous prime is 23144903. The next prime is 23144909. The reversal of 23144904 is 40944132.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 3802500 = 4398^2 + 1950^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23144903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37204 + ... + 37820.

Almost surely, 2^23144904 is an apocalyptic number.

23144904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23144904 is an abundant number, since it is smaller than the sum of its proper divisors (39761316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23144904 is a wasteful number, since it uses less digits than its factorization.

23144904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23144904 is about 4810.9150896685. The cubic root of 23144904 is about 284.9826766940.

The spelling of 23144904 in words is "twenty-three million, one hundred forty-four thousand, nine hundred four".