842042 has 8 divisors (see below), whose sum is σ = 1329600. Its totient is φ = 398844.

The previous prime is 842041. The next prime is 842047. The reversal of 842042 is 240248.

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

It is not an unprimeable number, because it can be changed into a prime (842041) 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 3 ways as a sum of consecutive naturals, for example, 11042 + ... + 11117.

It is an arithmetic number, because the mean of its divisors is an integer number (166200).

2⁸⁴²⁰⁴² is an apocalyptic number.

842042 is a deficient number, since it is larger than the sum of its proper divisors (487558).

842042 is a wasteful number, since it uses less digits than its factorization.

842042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22180.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 842042 is about 917.6284651208. The cubic root of 842042 is about 94.4302743318.

The spelling of 842042 in words is "eight hundred forty-two thousand, forty-two".