228165312 has 28 divisors (see below), whose sum is σ = 603687896. Its totient is φ = 76055040.

The previous prime is 228165299. The next prime is 228165317. The reversal of 228165312 is 213561822.

It is a self number, because there is not a number n which added to its sum of digits gives 228165312.

It is not an unprimeable number, because it can be changed into a prime (228165317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593989 + ... + 594372.

It is an arithmetic number, because the mean of its divisors is an integer number (21560282).

Almost surely, 2^228165312 is an apocalyptic number.

It is an amenable number.

228165312 is an abundant number, since it is smaller than the sum of its proper divisors (375522584).

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

228165312 is a wasteful number, since it uses less digits than its factorization.

228165312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188376 (or 1188366 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 228165312 is about 15105.1419059868. The cubic root of 228165312 is about 611.0590864166.

The spelling of 228165312 in words is "two hundred twenty-eight million, one hundred sixty-five thousand, three hundred twelve".