302228 has 6 divisors (see below), whose sum is σ = 528906. Its totient is φ = 151112.

The previous prime is 302227. The next prime is 302261. The reversal of 302228 is 822203.

302228 is nontrivially palindromic in base 16.

302228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 8464 = 542^2 + 92^2 .

It is an Ulam number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37775 + ... + 37782.

It is an arithmetic number, because the mean of its divisors is an integer number (88151).

2³⁰²²²⁸ is an apocalyptic number.

It is an amenable number.

302228 is a deficient number, since it is larger than the sum of its proper divisors (226678).

302228 is a wasteful number, since it uses less digits than its factorization.

302228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75561 (or 75559 counting only the distinct ones).

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

The square root of 302228 is about 549.7526716624. The cubic root of 302228 is about 67.1086082848.

The spelling of 302228 in words is "three hundred two thousand, two hundred twenty-eight".