331208 has 16 divisors (see below), whose sum is σ = 654000. Its totient is φ = 156816.

The previous prime is 331207. The next prime is 331213. The reversal of 331208 is 802133.

It is a super-4 number, since 4×331208⁴ (a number of 23 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (331207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 1241.

It is an arithmetic number, because the mean of its divisors is an integer number (40875).

2³³¹²⁰⁸ is an apocalyptic number.

331208 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

331208 is a deficient number, since it is larger than the sum of its proper divisors (322792).

331208 is a wasteful number, since it uses less digits than its factorization.

331208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2200 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 331208 is about 575.5067332360. The cubic root of 331208 is about 69.1884507439.

The spelling of 331208 in words is "three hundred thirty-one thousand, two hundred eight".