338311 has 4 divisors (see below), whose sum is σ = 339592. Its totient is φ = 337032.

The previous prime is 338309. The next prime is 338321. The reversal of 338311 is 113833.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 113833 = 67 ⋅1699.

It is a cyclic number.

It is not a de Polignac number, because 338311 - 2¹ = 338309 is a prime.

It is a super-2 number, since 2×338311² = 228908665442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338321) 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, 81 + ... + 826.

It is an arithmetic number, because the mean of its divisors is an integer number (84898).

2³³⁸³¹¹ is an apocalyptic number.

338311 is a deficient number, since it is larger than the sum of its proper divisors (1281).

338311 is an equidigital number, since it uses as much as digits as its factorization.

338311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280.

The product of its digits is 216, while the sum is 19.

The square root of 338311 is about 581.6450807838. The cubic root of 338311 is about 69.6795557247.

The spelling of 338311 in words is "three hundred thirty-eight thousand, three hundred eleven".