331888 has 10 divisors (see below), whose sum is σ = 643064. Its totient is φ = 165936.

The previous prime is 331883. The next prime is 331889. The reversal of 331888 is 888133.

It is a super-2 number, since 2×331888² = 220299289088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331883) by changing a digit.

331888 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 as a sum of consecutive naturals, namely, 10356 + ... + 10387.

2³³¹⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

331888 is a deficient number, since it is larger than the sum of its proper divisors (311176).

331888 is a wasteful number, since it uses less digits than its factorization.

331888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20751 (or 20745 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 331888 is about 576.0972140186. The cubic root of 331888 is about 69.2357684266.

The spelling of 331888 in words is "three hundred thirty-one thousand, eight hundred eighty-eight".