23872394 has 32 divisors (see below), whose sum is σ = 45601920. Its totient is φ = 9116352.

The previous prime is 23872393. The next prime is 23872397. The reversal of 23872394 is 49327832.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23872391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3017 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^23872394 is an apocalyptic number.

23872394 is a deficient number, since it is larger than the sum of its proper divisors (21729526).

23872394 is a wasteful number, since it uses less digits than its factorization.

23872394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574.

The product of its digits is 72576, while the sum is 38.

The square root of 23872394 is about 4885.9383950271. The cubic root of 23872394 is about 287.9377839500.

The spelling of 23872394 in words is "twenty-three million, eight hundred seventy-two thousand, three hundred ninety-four".