331304 has 8 divisors (see below), whose sum is σ = 621210. Its totient is φ = 165648.

The previous prime is 331301. The next prime is 331307. The reversal of 331304 is 403133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (331301) and next prime (331307).

It can be written as a sum of positive squares in only one way, i.e., 240100 + 91204 = 490^2 + 302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (331301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20699 + ... + 20714.

2³³¹³⁰⁴ is an apocalyptic number.

It is an amenable number.

331304 is a deficient number, since it is larger than the sum of its proper divisors (289906).

331304 is a wasteful number, since it uses less digits than its factorization.

331304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41419 (or 41415 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 331304 is about 575.5901319515. The cubic root of 331304 is about 69.1951348112.

Adding to 331304 its reverse (403133), we get a palindrome (734437).

The spelling of 331304 in words is "three hundred thirty-one thousand, three hundred four".