228838566 has 16 divisors (see below), whose sum is σ = 499284288. Its totient is φ = 69345000.

The previous prime is 228838543. The next prime is 228838579. The reversal of 228838566 is 665838822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733560 + ... + 1733691.

It is an arithmetic number, because the mean of its divisors is an integer number (31205268).

Almost surely, 2^228838566 is an apocalyptic number.

228838566 is an abundant number, since it is smaller than the sum of its proper divisors (270445722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228838566 is a wasteful number, since it uses less digits than its factorization.

228838566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467267.

The product of its digits is 1105920, while the sum is 48.

The square root of 228838566 is about 15127.4110805518. The cubic root of 228838566 is about 611.6595194846.

The spelling of 228838566 in words is "two hundred twenty-eight million, eight hundred thirty-eight thousand, five hundred sixty-six".