228030988 has 12 divisors (see below), whose sum is σ = 405818280. Its totient is φ = 112082912.

The previous prime is 228030967. The next prime is 228031007. The reversal of 228030988 is 889030822.

It is a super-2 number, since 2×228030988² = 103996262976512288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228030988.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482881 + ... + 483352.

It is an arithmetic number, because the mean of its divisors is an integer number (33818190).

Almost surely, 2^228030988 is an apocalyptic number.

It is an amenable number.

228030988 is a deficient number, since it is larger than the sum of its proper divisors (177787292).

228030988 is a wasteful number, since it uses less digits than its factorization.

228030988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966296 (or 966294 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 228030988 is about 15100.6949508955. The cubic root of 228030988 is about 610.9391499658.

The spelling of 228030988 in words is "two hundred twenty-eight million, thirty thousand, nine hundred eighty-eight".