842256 has 30 divisors (see below), whose sum is σ = 2357550. Its totient is φ = 280704.

The previous prime is 842249. The next prime is 842267. The reversal of 842256 is 652248.

It can be written as a sum of positive squares in only one way, i.e., 665856 + 176400 = 816^2 + 420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2781 + ... + 3068.

It is an arithmetic number, because the mean of its divisors is an integer number (78585).

2⁸⁴²²⁵⁶ is an apocalyptic number.

It is an amenable number.

842256 is an abundant number, since it is smaller than the sum of its proper divisors (1515294).

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

842256 is a wasteful number, since it uses less digits than its factorization.

842256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863 (or 5854 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 842256 is about 917.7450626399. The cubic root of 842256 is about 94.4382732864.

The spelling of 842256 in words is "eight hundred forty-two thousand, two hundred fifty-six".