228183930 has 48 divisors (see below), whose sum is σ = 638918280. Its totient is φ = 56168064.

The previous prime is 228183889. The next prime is 228183941. The reversal of 228183930 is 39381822.

It is a happy number.

228183930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 107557641 + 120626289 = 10371^2 + 10983^2 .

It is a super-3 number, since 3×228183930³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96345 + ... + 98684.

Almost surely, 2^228183930 is an apocalyptic number.

228183930 is an abundant number, since it is smaller than the sum of its proper divisors (410734350).

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

228183930 is a wasteful number, since it uses less digits than its factorization.

228183930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195055 (or 195052 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 228183930 is about 15105.7581736237. The cubic root of 228183930 is about 611.0757065133.

The spelling of 228183930 in words is "two hundred twenty-eight million, one hundred eighty-three thousand, nine hundred thirty".