331480 has 16 divisors (see below), whose sum is σ = 745920. Its totient is φ = 132576.

The previous prime is 331451. The next prime is 331489. The reversal of 331480 is 84133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331489) 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, 4104 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (46620).

2³³¹⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

331480 is an abundant number, since it is smaller than the sum of its proper divisors (414440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331480 is a wasteful number, since it uses less digits than its factorization.

331480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298 (or 8294 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 331480 is about 575.7429982206. The cubic root of 331480 is about 69.2073855817.

The spelling of 331480 in words is "three hundred thirty-one thousand, four hundred eighty".