304280 has 16 divisors (see below), whose sum is σ = 684720. Its totient is φ = 121696.

The previous prime is 304279. The next prime is 304301. The reversal of 304280 is 82403.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3764 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (42795).

2³⁰⁴²⁸⁰ is an apocalyptic number.

It is an amenable number.

304280 is an abundant number, since it is smaller than the sum of its proper divisors (380440).

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

304280 is a wasteful number, since it uses less digits than its factorization.

304280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618 (or 7614 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304280 is about 551.6158083304. The cubic root of 304280 is about 67.2601455099.

Adding to 304280 its reverse (82403), we get a palindrome (386683).

The spelling of 304280 in words is "three hundred four thousand, two hundred eighty".