218382 has 16 divisors (see below), whose sum is σ = 462672. Its totient is φ = 68480.

The previous prime is 218381. The next prime is 218389. The reversal of 218382 is 283812.

218382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (28917).

2²¹⁸³⁸² is an apocalyptic number.

218382 is an abundant number, since it is smaller than the sum of its proper divisors (244290).

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

218382 is a wasteful number, since it uses less digits than its factorization.

218382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163.

The product of its digits is 768, while the sum is 24.

The square root of 218382 is about 467.3135992029. The cubic root of 218382 is about 60.2197497405.

The spelling of 218382 in words is "two hundred eighteen thousand, three hundred eighty-two".