228116856 has 32 divisors (see below), whose sum is σ = 622137600. Its totient is φ = 69126240.

The previous prime is 228116821. The next prime is 228116909. The reversal of 228116856 is 658611822.

228116856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 431776 + ... + 432303.

It is an arithmetic number, because the mean of its divisors is an integer number (19441800).

Almost surely, 2^228116856 is an apocalyptic number.

It is an amenable number.

228116856 is an abundant number, since it is smaller than the sum of its proper divisors (394020744).

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

228116856 is a wasteful number, since it uses less digits than its factorization.

228116856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864099 (or 864095 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 228116856 is about 15103.5378636927. The cubic root of 228116856 is about 611.0158260058.

The spelling of 228116856 in words is "two hundred twenty-eight million, one hundred sixteen thousand, eight hundred fifty-six".