23442158 has 4 divisors (see below), whose sum is σ = 35163240. Its totient is φ = 11721078.

The previous prime is 23442157. The next prime is 23442163. The reversal of 23442158 is 85124432.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23442158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23442151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5860538 + ... + 5860541.

It is an arithmetic number, because the mean of its divisors is an integer number (8790810).

Almost surely, 2^23442158 is an apocalyptic number.

23442158 is a deficient number, since it is larger than the sum of its proper divisors (11721082).

23442158 is a wasteful number, since it uses less digits than its factorization.

23442158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721081.

The product of its digits is 7680, while the sum is 29.

The square root of 23442158 is about 4841.7102350306. The cubic root of 23442158 is about 286.1975178854.

The spelling of 23442158 in words is "twenty-three million, four hundred forty-two thousand, one hundred fifty-eight".