842156 has 24 divisors (see below), whose sum is σ = 1774080. Its totient is φ = 341712.

The previous prime is 842147. The next prime is 842159. The reversal of 842156 is 651248.

It is not an unprimeable number, because it can be changed into a prime (842159) 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 7 ways as a sum of consecutive naturals, for example, 260 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (73920).

2⁸⁴²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

842156 is an abundant number, since it is smaller than the sum of its proper divisors (931924).

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

842156 is a wasteful number, since it uses less digits than its factorization.

842156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 1611 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 842156 is about 917.6905796618. The cubic root of 842156 is about 94.4345356258.

The spelling of 842156 in words is "eight hundred forty-two thousand, one hundred fifty-six".