228808 has 16 divisors (see below), whose sum is σ = 441180. Its totient is φ = 111168.

The previous prime is 228799. The next prime is 228829. The reversal of 228808 is 808822.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 324 = 478^2 + 18^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91 + ... + 682.

2²²⁸⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

228808 is a deficient number, since it is larger than the sum of its proper divisors (212372).

228808 is a wasteful number, since it uses less digits than its factorization.

228808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 228808 is about 478.3387920711. The cubic root of 228808 is about 61.1632285122.

The spelling of 228808 in words is "two hundred twenty-eight thousand, eight hundred eight".