200218 has 4 divisors (see below), whose sum is σ = 300330. Its totient is φ = 100108.

The previous prime is 200201. The next prime is 200227. The reversal of 200218 is 812002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196249 + 3969 = 443^2 + 63^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 200198 and 200207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50053 + ... + 50056.

2²⁰⁰²¹⁸ is an apocalyptic number.

200218 is a deficient number, since it is larger than the sum of its proper divisors (100112).

200218 is a wasteful number, since it uses less digits than its factorization.

200218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 200218 is about 447.4572605289. The cubic root of 200218 is about 58.5015949111.

The spelling of 200218 in words is "two hundred thousand, two hundred eighteen".