218326 has 8 divisors (see below), whose sum is σ = 329904. Its totient is φ = 108360.

The previous prime is 218287. The next prime is 218357. The reversal of 218326 is 623812.

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

It is a d-powerful number, because it can be written as 2 + 1 + 3¹¹ + 8⁵ + 2¹³ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 218297 and 218306.

It is a congruent number.

It is an unprimeable number.

218326 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (41238).

2²¹⁸³²⁶ is an apocalyptic number.

218326 is a deficient number, since it is larger than the sum of its proper divisors (111578).

218326 is a wasteful number, since it uses less digits than its factorization.

218326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 576, while the sum is 22.

The square root of 218326 is about 467.2536784232. The cubic root of 218326 is about 60.2146018891.

It can be divided in two parts, 2183 and 26, that added together give a square (2209 = 47²).

The spelling of 218326 in words is "two hundred eighteen thousand, three hundred twenty-six".