218850 has 24 divisors (see below), whose sum is σ = 543120. Its totient is φ = 58320.

The previous prime is 218849. The next prime is 218857. The reversal of 218850 is 58812.

It is a self number, because there is not a number n which added to its sum of digits gives 218850.

It is not an unprimeable number, because it can be changed into a prime (218857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580 + ... + 879.

It is an arithmetic number, because the mean of its divisors is an integer number (22630).

2²¹⁸⁸⁵⁰ is an apocalyptic number.

218850 is an abundant number, since it is smaller than the sum of its proper divisors (324270).

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

218850 is a wasteful number, since it uses less digits than its factorization.

218850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 218850 is about 467.8140656286. The cubic root of 218850 is about 60.2627367000.

The spelling of 218850 in words is "two hundred eighteen thousand, eight hundred fifty".