338929 has 4 divisors (see below), whose sum is σ = 358884. Its totient is φ = 318976.

The previous prime is 338927. The next prime is 338959. The reversal of 338929 is 929833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 929833 = 727 ⋅1279.

It can be written as a sum of positive squares in 2 ways, for example, as 160000 + 178929 = 400^2 + 423^2 .

It is a cyclic number.

It is not a de Polignac number, because 338929 - 2¹ = 338927 is a prime.

It is a super-2 number, since 2×338929² = 229745734082, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

338929 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 338894 and 338903.

It is not an unprimeable number, because it can be changed into a prime (338927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9952 + ... + 9985.

It is an arithmetic number, because the mean of its divisors is an integer number (89721).

2³³⁸⁹²⁹ is an apocalyptic number.

It is an amenable number.

338929 is a deficient number, since it is larger than the sum of its proper divisors (19955).

338929 is a wasteful number, since it uses less digits than its factorization.

338929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954.

The product of its digits is 11664, while the sum is 34.

The square root of 338929 is about 582.1760901995. The cubic root of 338929 is about 69.7219582983.

The spelling of 338929 in words is "three hundred thirty-eight thousand, nine hundred twenty-nine".