23644132 has 24 divisors (see below), whose sum is σ = 44301600. Its totient is φ = 11007936.

The previous prime is 23644123. The next prime is 23644139. The reversal of 23644132 is 23144632.

It is a junction number, because it is equal to n+sod(n) for n = 23644097 and 23644106.

It is not an unprimeable number, because it can be changed into a prime (23644139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 7120.

It is an arithmetic number, because the mean of its divisors is an integer number (1845900).

Almost surely, 2^23644132 is an apocalyptic number.

It is an amenable number.

23644132 is a deficient number, since it is larger than the sum of its proper divisors (20657468).

23644132 is a wasteful number, since it uses less digits than its factorization.

23644132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355 (or 5353 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 23644132 is about 4862.5232133122. The cubic root of 23644132 is about 287.0171130233.

Adding to 23644132 its reverse (23144632), we get a palindrome (46788764).

Subtracting from 23644132 its reverse (23144632), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 23644132 in words is "twenty-three million, six hundred forty-four thousand, one hundred thirty-two".