228302768 has 20 divisors (see below), whose sum is σ = 448940760. Its totient is φ = 112447104.

The previous prime is 228302759. The next prime is 228302771. The reversal of 228302768 is 867203822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105413 + ... + 107556.

It is an arithmetic number, because the mean of its divisors is an integer number (22447038).

Almost surely, 2^228302768 is an apocalyptic number.

It is an amenable number.

228302768 is a deficient number, since it is larger than the sum of its proper divisors (220637992).

228302768 is a wasteful number, since it uses less digits than its factorization.

228302768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213044 (or 213038 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 228302768 is about 15109.6911947266. The cubic root of 228302768 is about 611.1817706751.

The spelling of 228302768 in words is "two hundred twenty-eight million, three hundred two thousand, seven hundred sixty-eight".