23866142 has 4 divisors (see below), whose sum is σ = 35799216. Its totient is φ = 11933070.

The previous prime is 23866127. The next prime is 23866163. The reversal of 23866142 is 24166832.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 23866099 and 23866108.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5966534 + ... + 5966537.

It is an arithmetic number, because the mean of its divisors is an integer number (8949804).

Almost surely, 2^23866142 is an apocalyptic number.

23866142 is a deficient number, since it is larger than the sum of its proper divisors (11933074).

23866142 is a wasteful number, since it uses less digits than its factorization.

23866142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933073.

The product of its digits is 13824, while the sum is 32.

The square root of 23866142 is about 4885.2985579184. The cubic root of 23866142 is about 287.9126455104.

The spelling of 23866142 in words is "twenty-three million, eight hundred sixty-six thousand, one hundred forty-two".