338818 has 4 divisors (see below), whose sum is σ = 508230. Its totient is φ = 169408.

The previous prime is 338803. The next prime is 338839. The reversal of 338818 is 818833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 818833 = 599 ⋅1367.

It can be written as a sum of positive squares in only one way, i.e., 247009 + 91809 = 497^2 + 303^2 .

It is a super-2 number, since 2×338818² = 229595274248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 338818.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84703 + ... + 84706.

2³³⁸⁸¹⁸ is an apocalyptic number.

338818 is a deficient number, since it is larger than the sum of its proper divisors (169412).

338818 is a wasteful number, since it uses less digits than its factorization.

338818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169411.

The product of its digits is 4608, while the sum is 31.

The square root of 338818 is about 582.0807504118. The cubic root of 338818 is about 69.7143461019.

It can be divided in two parts, 338 and 818, that added together give a square (1156 = 34²).

The spelling of 338818 in words is "three hundred thirty-eight thousand, eight hundred eighteen".