218865196 has 48 divisors (see below), whose sum is σ = 429649920. Its totient is φ = 96707520.

The previous prime is 218865187. The next prime is 218865197. The reversal of 218865196 is 691568812.

218865196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (218865197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295795 + ... + 296533.

It is an arithmetic number, because the mean of its divisors is an integer number (8951040).

Almost surely, 2^218865196 is an apocalyptic number.

It is an amenable number.

218865196 is a deficient number, since it is larger than the sum of its proper divisors (210784724).

218865196 is a wasteful number, since it uses less digits than its factorization.

218865196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 932 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 218865196 is about 14794.0932807658. The cubic root of 218865196 is about 602.6413146254.

The spelling of 218865196 in words is "two hundred eighteen million, eight hundred sixty-five thousand, one hundred ninety-six".