228545856 has 168 divisors, whose sum is σ = 816888384. Its totient is φ = 59351040.

The previous prime is 228545831. The next prime is 228545869. The reversal of 228545856 is 658545822.

It is a happy number.

228545856 is a `hidden beast` number, since 2 + 28 + 545 + 85 + 6 = 666.

228545856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41776 + ... + 46928.

Almost surely, 2^228545856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228545856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408444192).

228545856 is an abundant number, since it is smaller than the sum of its proper divisors (588342528).

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

228545856 is a wasteful number, since it uses less digits than its factorization.

228545856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189 (or 5176 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 228545856 is about 15117.7331634078. The cubic root of 228545856 is about 611.3986146726.

The spelling of 228545856 in words is "two hundred twenty-eight million, five hundred forty-five thousand, eight hundred fifty-six".