23664372 has 12 divisors (see below), whose sum is σ = 55216896. Its totient is φ = 7888120.

The previous prime is 23664343. The next prime is 23664373. The reversal of 23664372 is 27346632.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23664373) 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 3 ways as a sum of consecutive naturals, for example, 986004 + ... + 986027.

It is an arithmetic number, because the mean of its divisors is an integer number (4601408).

Almost surely, 2^23664372 is an apocalyptic number.

It is an amenable number.

23664372 is an abundant number, since it is smaller than the sum of its proper divisors (31552524).

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

23664372 is a wasteful number, since it uses less digits than its factorization.

23664372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972038 (or 1972036 counting only the distinct ones).

The product of its digits is 36288, while the sum is 33.

The square root of 23664372 is about 4864.6039921046. The cubic root of 23664372 is about 287.0989877359.

The spelling of 23664372 in words is "twenty-three million, six hundred sixty-four thousand, three hundred seventy-two".