228228912 has 60 divisors (see below), whose sum is σ = 672349080. Its totient is φ = 72071424.

The previous prime is 228228911. The next prime is 228228941. The reversal of 228228912 is 219822822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (228228911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38973 + ... + 44444.

It is an arithmetic number, because the mean of its divisors is an integer number (11205818).

Almost surely, 2^228228912 is an apocalyptic number.

It is an amenable number.

228228912 is an abundant number, since it is smaller than the sum of its proper divisors (444120168).

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

228228912 is a wasteful number, since it uses less digits than its factorization.

228228912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83450 (or 83441 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 228228912 is about 15107.2470026805. The cubic root of 228228912 is about 611.1158577507.

The spelling of 228228912 in words is "two hundred twenty-eight million, two hundred twenty-eight thousand, nine hundred twelve".