302281 has 12 divisors (see below), whose sum is σ = 364800. Its totient is φ = 249480.

The previous prime is 302279. The next prime is 302287. The reversal of 302281 is 182203.

It is a happy number.

It is not a de Polignac number, because 302281 - 2¹ = 302279 is a prime.

It is a super-2 number, since 2×302281² = 182747605922, which contains 22 as substring.

It is a Duffinian number.

302281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (302287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1420 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (30400).

2³⁰²²⁸¹ is an apocalyptic number.

302281 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

302281 is a deficient number, since it is larger than the sum of its proper divisors (62519).

302281 is a wasteful number, since it uses less digits than its factorization.

302281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 302281 is about 549.8008730441. The cubic root of 302281 is about 67.1125308734.

Adding to 302281 its reverse (182203), we get a palindrome (484484).

The spelling of 302281 in words is "three hundred two thousand, two hundred eighty-one".