331384 has 16 divisors (see below), whose sum is σ = 648720. Its totient is φ = 158400.

The previous prime is 331369. The next prime is 331391. The reversal of 331384 is 483133.

It is a congruent number.

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, 717 + ... + 1084.

It is an arithmetic number, because the mean of its divisors is an integer number (40545).

2³³¹³⁸⁴ is an apocalyptic number.

It is an amenable number.

331384 is a deficient number, since it is larger than the sum of its proper divisors (317336).

331384 is a wasteful number, since it uses less digits than its factorization.

331384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1826 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 331384 is about 575.6596216515. The cubic root of 331384 is about 69.2007038809.

The spelling of 331384 in words is "three hundred thirty-one thousand, three hundred eighty-four".