313278 has 16 divisors (see below), whose sum is σ = 716160. Its totient is φ = 89496.

The previous prime is 313273. The next prime is 313289. The reversal of 313278 is 872313.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313278.

It is not an unprimeable number, because it can be changed into a prime (313273) by changing a digit.

313278 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, 3688 + ... + 3771.

It is an arithmetic number, because the mean of its divisors is an integer number (44760).

2³¹³²⁷⁸ is an apocalyptic number.

313278 is an abundant number, since it is smaller than the sum of its proper divisors (402882).

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

313278 is a wasteful number, since it uses less digits than its factorization.

313278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7471.

The product of its digits is 1008, while the sum is 24.

The square root of 313278 is about 559.7124261619. The cubic root of 313278 is about 67.9167088629.

The spelling of 313278 in words is "three hundred thirteen thousand, two hundred seventy-eight".