228727908 has 48 divisors (see below), whose sum is σ = 598570560. Its totient is φ = 75526272.

The previous prime is 228727859. The next prime is 228727927. The reversal of 228727908 is 809727822.

It is a happy 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, 1660 + ... + 21452.

It is an arithmetic number, because the mean of its divisors is an integer number (12470220).

Almost surely, 2^228727908 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 228727908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299285280).

228727908 is an abundant number, since it is smaller than the sum of its proper divisors (369842652).

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

228727908 is a wasteful number, since it uses less digits than its factorization.

228727908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913 (or 19905 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 228727908 is about 15123.7531056282. The cubic root of 228727908 is about 611.5609114961.

The spelling of 228727908 in words is "two hundred twenty-eight million, seven hundred twenty-seven thousand, nine hundred eight".