311338 has 8 divisors (see below), whose sum is σ = 494532. Its totient is φ = 146496.

The previous prime is 311329. The next prime is 311341. The reversal of 311338 is 833113.

It can be written as a sum of positive squares in 2 ways, for example, as 310249 + 1089 = 557^2 + 33^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545 + ... + 4612.

2³¹¹³³⁸ is an apocalyptic number.

311338 is a deficient number, since it is larger than the sum of its proper divisors (183194).

311338 is a wasteful number, since it uses less digits than its factorization.

311338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176.

The product of its digits is 216, while the sum is 19.

The square root of 311338 is about 557.9767020226. The cubic root of 311338 is about 67.7762251926.

It can be divided in two parts, 31 and 1338, that added together give a square (1369 = 37²).

The spelling of 311338 in words is "three hundred eleven thousand, three hundred thirty-eight".