228315186 has 80 divisors (see below), whose sum is σ = 576246528. Its totient is φ = 66938400.

The previous prime is 228315179. The next prime is 228315203. The reversal of 228315186 is 681513822.

It is a happy number.

228315186 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228315186.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53176 + ... + 57308.

Almost surely, 2^228315186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228315186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288123264).

228315186 is an abundant number, since it is smaller than the sum of its proper divisors (347931342).

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

228315186 is a wasteful number, since it uses less digits than its factorization.

228315186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4180 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 228315186 is about 15110.1021174577. The cubic root of 228315186 is about 611.1928517462.

The spelling of 228315186 in words is "two hundred twenty-eight million, three hundred fifteen thousand, one hundred eighty-six".