218046 has 8 divisors (see below), whose sum is σ = 436104. Its totient is φ = 72680.

The previous prime is 218021. The next prime is 218047. The reversal of 218046 is 640812.

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

218046 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218046.

It is not an unprimeable number, because it can be changed into a prime (218047) 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, 18165 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (54513).

2²¹⁸⁰⁴⁶ is an apocalyptic number.

218046 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.

218046 is a wasteful number, since it uses less digits than its factorization.

218046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36346.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 218046 is about 466.9539591866. The cubic root of 218046 is about 60.1888494191.

Adding to 218046 its reverse (640812), we get a palindrome (858858).

The spelling of 218046 in words is "two hundred eighteen thousand, forty-six".