228108660 has 96 divisors (see below), whose sum is σ = 694404480. Its totient is φ = 55613952.

The previous prime is 228108659. The next prime is 228108667. The reversal of 228108660 is 66801822.

228108660 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 not an unprimeable number, because it can be changed into a prime (228108667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83679 + ... + 86361.

It is an arithmetic number, because the mean of its divisors is an integer number (7233380).

Almost surely, 2^228108660 is an apocalyptic number.

228108660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228108660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347202240).

228108660 is an abundant number, since it is smaller than the sum of its proper divisors (466295820).

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

228108660 is a wasteful number, since it uses less digits than its factorization.

228108660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 228108660 is about 15103.2665340978. The cubic root of 228108660 is about 611.0085081983.

The spelling of 228108660 in words is "two hundred twenty-eight million, one hundred eight thousand, six hundred sixty".