842860 has 48 divisors (see below), whose sum is σ = 1953504. Its totient is φ = 304128.

The previous prime is 842857. The next prime is 842869. The reversal of 842860 is 68248.

It is not an unprimeable number, because it can be changed into a prime (842869) 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 15 ways as a sum of consecutive naturals, for example, 12547 + ... + 12613.

It is an arithmetic number, because the mean of its divisors is an integer number (40698).

2⁸⁴²⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976752).

842860 is an abundant number, since it is smaller than the sum of its proper divisors (1110644).

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

842860 is a wasteful number, since it uses less digits than its factorization.

842860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 842860 is about 918.0740710858. The cubic root of 842860 is about 94.4608424686.

The spelling of 842860 in words is "eight hundred forty-two thousand, eight hundred sixty".