338381 has 4 divisors (see below), whose sum is σ = 339552. Its totient is φ = 337212.

The previous prime is 338369. The next prime is 338383. The reversal of 338381 is 183833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338381 is a prime.

It is a super-2 number, since 2×338381² = 229003402322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 338381.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 338381.

It is not an unprimeable number, because it can be changed into a prime (338383) 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, 200 + ... + 846.

It is an arithmetic number, because the mean of its divisors is an integer number (84888).

2³³⁸³⁸¹ is an apocalyptic number.

It is an amenable number.

338381 is a deficient number, since it is larger than the sum of its proper divisors (1171).

338381 is an equidigital number, since it uses as much as digits as its factorization.

338381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its digits is 1728, while the sum is 26.

The square root of 338381 is about 581.7052518243. The cubic root of 338381 is about 69.6843611971.

It can be divided in two parts, 338 and 381, that multiplied together give a triangular number (128778 = T₅₀₇).

The spelling of 338381 in words is "three hundred thirty-eight thousand, three hundred eighty-one".