228168306 has 16 divisors (see below), whose sum is σ = 507040800. Its totient is φ = 76056084.

The previous prime is 228168293. The next prime is 228168329. The reversal of 228168306 is 603861822.

228168306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112616 + ... + 2112723.

It is an arithmetic number, because the mean of its divisors is an integer number (31690050).

Almost surely, 2^228168306 is an apocalyptic number.

228168306 is an abundant number, since it is smaller than the sum of its proper divisors (278872494).

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

228168306 is a wasteful number, since it uses less digits than its factorization.

228168306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225350 (or 4225344 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 228168306 is about 15105.2410109869. The cubic root of 228168306 is about 611.0617591906.

The spelling of 228168306 in words is "two hundred twenty-eight million, one hundred sixty-eight thousand, three hundred six".