228228276 has 24 divisors (see below), whose sum is σ = 534661344. Its totient is φ = 75772000.

The previous prime is 228228239. The next prime is 228228277. The reversal of 228228276 is 672822822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228228277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34875 + ... + 40898.

It is an arithmetic number, because the mean of its divisors is an integer number (22277556).

Almost surely, 2^228228276 is an apocalyptic number.

It is an amenable number.

228228276 is an abundant number, since it is smaller than the sum of its proper divisors (306433068).

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

228228276 is a wasteful number, since it uses less digits than its factorization.

228228276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76031 (or 76029 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 228228276 is about 15107.2259531656. The cubic root of 228228276 is about 611.1152900896.

The spelling of 228228276 in words is "two hundred twenty-eight million, two hundred twenty-eight thousand, two hundred seventy-six".