228018916 has 12 divisors (see below), whose sum is σ = 399139888. Its totient is φ = 113978952.

The previous prime is 228018911. The next prime is 228018929. The reversal of 228018916 is 619810822.

It is not an unprimeable number, because it can be changed into a prime (228018911) 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, 21835 + ... + 30541.

Almost surely, 2^228018916 is an apocalyptic number.

It is an amenable number.

228018916 is a deficient number, since it is larger than the sum of its proper divisors (171120972).

228018916 is a wasteful number, since it uses less digits than its factorization.

228018916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15258 (or 15256 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 228018916 is about 15100.2952289020. The cubic root of 228018916 is about 610.9283687007.

The spelling of 228018916 in words is "two hundred twenty-eight million, eighteen thousand, nine hundred sixteen".