229218188 has 12 divisors (see below), whose sum is σ = 403534992. Its totient is φ = 113922480.

The previous prime is 229218179. The next prime is 229218193. The reversal of 229218188 is 881812922.

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, 170903 + ... + 172238.

It is an arithmetic number, because the mean of its divisors is an integer number (33627916).

Almost surely, 2^229218188 is an apocalyptic number.

It is an amenable number.

229218188 is a deficient number, since it is larger than the sum of its proper divisors (174316804).

229218188 is a wasteful number, since it uses less digits than its factorization.

229218188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343312 (or 343310 counting only the distinct ones).

The product of its digits is 36864, while the sum is 41.

The square root of 229218188 is about 15139.9533684883. The cubic root of 229218188 is about 611.9975614695.

The spelling of 229218188 in words is "two hundred twenty-nine million, two hundred eighteen thousand, one hundred eighty-eight".