338981 has 4 divisors (see below), whose sum is σ = 350700. Its totient is φ = 327264.

The previous prime is 338959. The next prime is 338993. The reversal of 338981 is 189833.

338981 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 58081 = 530^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 338981 - 2¹⁰ = 337957 is a prime.

It is a super-2 number, since 2×338981² = 229816236722, which contains 22 as substring.

It is a Duffinian number.

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 338981.

It is not an unprimeable number, because it can be changed into a prime (338581) 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, 5816 + ... + 5873.

It is an arithmetic number, because the mean of its divisors is an integer number (87675).

2³³⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

338981 is a deficient number, since it is larger than the sum of its proper divisors (11719).

338981 is a wasteful number, since it uses less digits than its factorization.

338981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11718.

The product of its digits is 5184, while the sum is 32.

The square root of 338981 is about 582.2207485138. The cubic root of 338981 is about 69.7255238007.

The spelling of 338981 in words is "three hundred thirty-eight thousand, nine hundred eighty-one".