338749 has 4 divisors (see below), whose sum is σ = 350460. Its totient is φ = 327040.

The previous prime is 338747. The next prime is 338753. The reversal of 338749 is 947833.

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 174724 + 164025 = 418^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 338749 - 2¹ = 338747 is a prime.

It is a super-2 number, since 2×338749² = 229501770002, 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 (338747) 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, 5812 + ... + 5869.

It is an arithmetic number, because the mean of its divisors is an integer number (87615).

2³³⁸⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

338749 is a deficient number, since it is larger than the sum of its proper divisors (11711).

338749 is a wasteful number, since it uses less digits than its factorization.

338749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710.

The product of its digits is 18144, while the sum is 34.

The square root of 338749 is about 582.0214772669. The cubic root of 338749 is about 69.7096133580.

The spelling of 338749 in words is "three hundred thirty-eight thousand, seven hundred forty-nine".