842286 has 8 divisors (see below), whose sum is σ = 1684584. Its totient is φ = 280760.

The previous prime is 842279. The next prime is 842291. The reversal of 842286 is 682248.

It is a happy number.

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

842286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

842286 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 70185 + ... + 70196.

It is an arithmetic number, because the mean of its divisors is an integer number (210573).

2⁸⁴²²⁸⁶ is an apocalyptic number.

842286 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.

842286 is a wasteful number, since it uses less digits than its factorization.

842286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140386.

The product of its digits is 6144, while the sum is 30.

The square root of 842286 is about 917.7614069027. The cubic root of 842286 is about 94.4393945269.

It can be divided in two parts, 842 and 286, that added together give a triangular number (1128 = T₄₇).

The spelling of 842286 in words is "eight hundred forty-two thousand, two hundred eighty-six".