228228966 has 36 divisors (see below), whose sum is σ = 575232372. Its totient is φ = 65208024.

The previous prime is 228228947. The next prime is 228228989. The reversal of 228228966 is 669822822.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 128500 + ... + 130263.

It is an arithmetic number, because the mean of its divisors is an integer number (15978677).

Almost surely, 2^228228966 is an apocalyptic number.

228228966 is an abundant number, since it is smaller than the sum of its proper divisors (347003406).

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

228228966 is a wasteful number, since it uses less digits than its factorization.

228228966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258785 (or 258775 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 228228966 is about 15107.2487899022. The cubic root of 228228966 is about 611.1159059483.

The spelling of 228228966 in words is "two hundred twenty-eight million, two hundred twenty-eight thousand, nine hundred sixty-six".