331768 has 16 divisors (see below), whose sum is σ = 629280. Its totient is φ = 163968.

The previous prime is 331753. The next prime is 331769. The reversal of 331768 is 867133.

It is a super-2 number, since 2×331768² = 220140011648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331769) 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, 721 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (39330).

331768 is a Friedman number, since it can be written as (6*(3+1))^(7-3)-8, using all its digits and the basic arithmetic operations.

2³³¹⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

331768 is a deficient number, since it is larger than the sum of its proper divisors (297512).

331768 is a wasteful number, since it uses less digits than its factorization.

331768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 482 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 331768 is about 575.9930555137. The cubic root of 331768 is about 69.2274229468.

The spelling of 331768 in words is "three hundred thirty-one thousand, seven hundred sixty-eight".