313842 has 16 divisors (see below), whose sum is σ = 660960. Its totient is φ = 99072.

The previous prime is 313829. The next prime is 313849. The reversal of 313842 is 248313.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313842.

It is not an unprimeable number, because it can be changed into a prime (313849) by changing a digit.

313842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 1490.

It is an arithmetic number, because the mean of its divisors is an integer number (41310).

2³¹³⁸⁴² is an apocalyptic number.

313842 is an abundant number, since it is smaller than the sum of its proper divisors (347118).

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

313842 is a wasteful number, since it uses less digits than its factorization.

313842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777.

The product of its digits is 576, while the sum is 21.

The square root of 313842 is about 560.2160297599. The cubic root of 313842 is about 67.9574416515.

The spelling of 313842 in words is "three hundred thirteen thousand, eight hundred forty-two".