228181168 has 10 divisors (see below), whose sum is σ = 442101044. Its totient is φ = 114090576.

The previous prime is 228181159. The next prime is 228181169. The reversal of 228181168 is 861181822.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (228181169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7130646 + ... + 7130677.

Almost surely, 2^228181168 is an apocalyptic number.

It is an amenable number.

228181168 is a deficient number, since it is larger than the sum of its proper divisors (213919876).

228181168 is a wasteful number, since it uses less digits than its factorization.

228181168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14261331 (or 14261325 counting only the distinct ones).

The product of its digits is 12288, while the sum is 37.

The square root of 228181168 is about 15105.6667512560. Note that the first 3 decimals coincide. The cubic root of 228181168 is about 611.0732409615.

The spelling of 228181168 in words is "two hundred twenty-eight million, one hundred eighty-one thousand, one hundred sixty-eight".