442158 has 8 divisors (see below), whose sum is σ = 884328. Its totient is φ = 147384.

The previous prime is 442157. The next prime is 442171. The reversal of 442158 is 851244.

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

442158 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442158.

It is not an unprimeable number, because it can be changed into a prime (442151) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 36841 + ... + 36852.

It is an arithmetic number, because the mean of its divisors is an integer number (110541).

2⁴⁴²¹⁵⁸ is an apocalyptic number.

442158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442158 is a wasteful number, since it uses less digits than its factorization.

442158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73698.

The product of its digits is 1280, while the sum is 24.

The square root of 442158 is about 664.9496221519. The cubic root of 442158 is about 76.1831915034.

The spelling of 442158 in words is "four hundred forty-two thousand, one hundred fifty-eight".