311492 has 12 divisors (see below), whose sum is σ = 558096. Its totient is φ = 152040.

The previous prime is 311473. The next prime is 311533. The reversal of 311492 is 294113.

311492 is nontrivially palindromic in base 16.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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, 734 + ... + 1077.

It is an arithmetic number, because the mean of its divisors is an integer number (46508).

2³¹¹⁴⁹² is an apocalyptic number.

It is an amenable number.

311492 is a deficient number, since it is larger than the sum of its proper divisors (246604).

311492 is a wasteful number, since it uses less digits than its factorization.

311492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1856 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 311492 is about 558.1146835553. The cubic root of 311492 is about 67.7873982780.

The spelling of 311492 in words is "three hundred eleven thousand, four hundred ninety-two".