228887236688 has 80 divisors (see below), whose sum is σ = 502456031232. Its totient is φ = 100065456000.

The previous prime is 228887236679. The next prime is 228887236691. The reversal of 228887236688 is 886632788822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760643 + ... + 1018013.

Almost surely, 2^228887236688 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 228887236688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251228015616).

228887236688 is an abundant number, since it is smaller than the sum of its proper divisors (273568794544).

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

228887236688 is a wasteful number, since it uses less digits than its factorization.

228887236688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257584 (or 257578 counting only the distinct ones).

The product of its digits is 198180864, while the sum is 68.

The spelling of 228887236688 in words is "two hundred twenty-eight billion, eight hundred eighty-seven million, two hundred thirty-six thousand, six hundred eighty-eight".