842356 has 12 divisors (see below), whose sum is σ = 1481760. Its totient is φ = 419000.

The previous prime is 842353. The next prime is 842371. The reversal of 842356 is 653248.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842351) 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, 585 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (123480).

2⁸⁴²³⁵⁶ is an apocalyptic number.

It is an amenable number.

842356 is a deficient number, since it is larger than the sum of its proper divisors (639404).

842356 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 842356 = (236548)₁₃.

842356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1092 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 842356 is about 917.7995423838. The cubic root of 842356 is about 94.4420106511.

The spelling of 842356 in words is "eight hundred forty-two thousand, three hundred fifty-six".