388930228 has 12 divisors (see below), whose sum is σ = 716450560. Its totient is φ = 184230072.

The previous prime is 388930219. The next prime is 388930229. The reversal of 388930228 is 822039883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388930229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558676 + ... + 2558827.

Almost surely, 2^388930228 is an apocalyptic number.

388930228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

388930228 is a deficient number, since it is larger than the sum of its proper divisors (327520332).

388930228 is a wasteful number, since it uses less digits than its factorization.

388930228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117526 (or 5117524 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 388930228 is about 19721.3140535817. The cubic root of 388930228 is about 729.9457193642.

The spelling of 388930228 in words is "three hundred eighty-eight million, nine hundred thirty thousand, two hundred twenty-eight".