23153744 has 20 divisors (see below), whose sum is σ = 44934996. Its totient is φ = 11557632.

The previous prime is 23153729. The next prime is 23153747. The reversal of 23153744 is 44735132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 17808400 = 2312^2 + 4220^2 .

It is a super-2 number, since 2×23153744² = 1072191722435072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23153747) 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, 18482 + ... + 19694.

Almost surely, 2^23153744 is an apocalyptic number.

It is an amenable number.

23153744 is a deficient number, since it is larger than the sum of its proper divisors (21781252).

23153744 is a wasteful number, since it uses less digits than its factorization.

23153744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2408 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 23153744 is about 4811.8337460889. The cubic root of 23153744 is about 285.0189543155.

Adding to 23153744 its reverse (44735132), we get a palindrome (67888876).

The spelling of 23153744 in words is "twenty-three million, one hundred fifty-three thousand, seven hundred forty-four".