338218 has 8 divisors (see below), whose sum is σ = 510048. Its totient is φ = 168204.

The previous prime is 338213. The next prime is 338231. The reversal of 338218 is 812833.

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

It is a super-2 number, since 2×338218² = 228782831048, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 338192 and 338201.

It is not an unprimeable number, because it can be changed into a prime (338213) by changing a digit.

338218 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, 205 + ... + 847.

It is an arithmetic number, because the mean of its divisors is an integer number (63756).

2³³⁸²¹⁸ is an apocalyptic number.

338218 is a deficient number, since it is larger than the sum of its proper divisors (171830).

338218 is a wasteful number, since it uses less digits than its factorization.

338218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its digits is 1152, while the sum is 25.

The square root of 338218 is about 581.5651296287. The cubic root of 338218 is about 69.6731702859.

The spelling of 338218 in words is "three hundred thirty-eight thousand, two hundred eighteen".