330280 has 32 divisors (see below), whose sum is σ = 777600. Its totient is φ = 126016.

The previous prime is 330271. The next prime is 330287. The reversal of 330280 is 82033.

It is a happy number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (330287) by changing a digit.

330280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2³³⁰²⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388800).

330280 is an abundant number, since it is smaller than the sum of its proper divisors (447320).

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

330280 is a wasteful number, since it uses less digits than its factorization.

330280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 330280 is about 574.6999216983. The cubic root of 330280 is about 69.1237714063.

The spelling of 330280 in words is "three hundred thirty thousand, two hundred eighty".