218250 has 48 divisors (see below), whose sum is σ = 596232. Its totient is φ = 57600.

The previous prime is 218249. The next prime is 218279. The reversal of 218250 is 52812.

It can be written as a sum of positive squares in 4 ways, for example, as 59049 + 159201 = 243^2 + 399^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218250.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2202 + ... + 2298.

2²¹⁸²⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298116).

218250 is an abundant number, since it is smaller than the sum of its proper divisors (377982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218250 is a wasteful number, since it uses less digits than its factorization.

218250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 218250 is about 467.1723450719. The cubic root of 218250 is about 60.2076141111.

The spelling of 218250 in words is "two hundred eighteen thousand, two hundred fifty".