23312144 has 20 divisors (see below), whose sum is σ = 45248220. Its totient is φ = 11635200.

The previous prime is 23312131. The next prime is 23312147. The reversal of 23312144 is 44121332.

It can be written as a sum of positive squares in 2 ways, for example, as 11833600 + 11478544 = 3440^2 + 3388^2 .

It is not an unprimeable number, because it can be changed into a prime (23312147) 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, 12044 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (2262411).

Almost surely, 2^23312144 is an apocalyptic number.

It is an amenable number.

23312144 is a deficient number, since it is larger than the sum of its proper divisors (21936076).

23312144 is a wasteful number, since it uses less digits than its factorization.

23312144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2612 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 23312144 is about 4828.2651128537. The cubic root of 23312144 is about 285.6674374616.

Adding to 23312144 its reverse (44121332), we get a palindrome (67433476).

The spelling of 23312144 in words is "twenty-three million, three hundred twelve thousand, one hundred forty-four".