304281 has 6 divisors (see below), whose sum is σ = 439530. Its totient is φ = 202848.

The previous prime is 304279. The next prime is 304301. The reversal of 304281 is 182403.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 266256 + 38025 = 516^2 + 195^2 .

It is not a de Polignac number, because 304281 - 2¹ = 304279 is a prime.

It is a super-2 number, since 2×304281² = 185173853922, which contains 22 as substring.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304281.

It is not an unprimeable number, because it can be changed into a prime (304211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16896 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (73255).

2³⁰⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

304281 is a deficient number, since it is larger than the sum of its proper divisors (135249).

304281 is a wasteful number, since it uses less digits than its factorization.

304281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33815 (or 33812 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 304281 is about 551.6167147576. The cubic root of 304281 is about 67.2602191921.

Adding to 304281 its reverse (182403), we get a palindrome (486684).

It can be divided in two parts, 304 and 281, that added together give a palindrome (585).

The spelling of 304281 in words is "three hundred four thousand, two hundred eighty-one".