302840228 has 12 divisors (see below), whose sum is σ = 542295600. Its totient is φ = 147898632.

The previous prime is 302840207. The next prime is 302840233. The reversal of 302840228 is 822048203.

It is a self number, because there is not a number n which added to its sum of digits gives 302840228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880178 + ... + 880521.

It is an arithmetic number, because the mean of its divisors is an integer number (45191300).

Almost surely, 2^302840228 is an apocalyptic number.

It is an amenable number.

302840228 is a deficient number, since it is larger than the sum of its proper divisors (239455372).

302840228 is a wasteful number, since it uses less digits than its factorization.

302840228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760746 (or 1760744 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 302840228 is about 17402.3052495927. The cubic root of 302840228 is about 671.5389204133.

The spelling of 302840228 in words is "three hundred two million, eight hundred forty thousand, two hundred twenty-eight".