218814 has 8 divisors (see below), whose sum is σ = 437640. Its totient is φ = 72936.

The previous prime is 218809. The next prime is 218819. The reversal of 218814 is 418812.

It is an interprime number because it is at equal distance from previous prime (218809) and next prime (218819).

It is a sphenic number, since it is the product of 3 distinct primes.

218814 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18229 + ... + 18240.

It is an arithmetic number, because the mean of its divisors is an integer number (54705).

2²¹⁸⁸¹⁴ is an apocalyptic number.

218814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

218814 is a wasteful number, since it uses less digits than its factorization.

218814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36474.

The product of its digits is 512, while the sum is 24.

The square root of 218814 is about 467.7755872211. The cubic root of 218814 is about 60.2594321878.

The spelling of 218814 in words is "two hundred eighteen thousand, eight hundred fourteen".