23864128 has 14 divisors (see below), whose sum is σ = 47355506. Its totient is φ = 11932032.

The previous prime is 23864123. The next prime is 23864147. The reversal of 23864128 is 82146832.

It can be written as a sum of positive squares in only one way, i.e., 21455424 + 2408704 = 4632^2 + 1552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23864093 and 23864102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23864123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186375 + ... + 186502.

Almost surely, 2^23864128 is an apocalyptic number.

It is an amenable number.

23864128 is a deficient number, since it is larger than the sum of its proper divisors (23491378).

23864128 is an equidigital number, since it uses as much as digits as its factorization.

23864128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372889 (or 372879 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 23864128 is about 4885.0924249189. The cubic root of 23864128 is about 287.9045465561.

The spelling of 23864128 in words is "twenty-three million, eight hundred sixty-four thousand, one hundred twenty-eight".