331238 has 8 divisors (see below), whose sum is σ = 514080. Its totient is φ = 159880.

The previous prime is 331231. The next prime is 331241. The reversal of 331238 is 832133.

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

It is a super-2 number, since 2×331238² = 219437225288, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331231) 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, 2798 + ... + 2913.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2³³¹²³⁸ is an apocalyptic number.

331238 is a deficient number, since it is larger than the sum of its proper divisors (182842).

331238 is a wasteful number, since it uses less digits than its factorization.

331238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742.

The product of its digits is 432, while the sum is 20.

The square root of 331238 is about 575.5327966328. The cubic root of 331238 is about 69.1905396536.

The spelling of 331238 in words is "three hundred thirty-one thousand, two hundred thirty-eight".