23688442 has 8 divisors (see below), whose sum is σ = 36359136. Its totient is φ = 11568732.

The previous prime is 23688437. The next prime is 23688443. The reversal of 23688442 is 24488632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23688442² = 1122284568774728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23688443) 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, 137638 + ... + 137809.

It is an arithmetic number, because the mean of its divisors is an integer number (4544892).

Almost surely, 2^23688442 is an apocalyptic number.

23688442 is a deficient number, since it is larger than the sum of its proper divisors (12670694).

23688442 is a wasteful number, since it uses less digits than its factorization.

23688442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275492.

The product of its digits is 73728, while the sum is 37.

The square root of 23688442 is about 4867.0773571005. The cubic root of 23688442 is about 287.1962947901.

The spelling of 23688442 in words is "twenty-three million, six hundred eighty-eight thousand, four hundred forty-two".