338549 has 4 divisors (see below), whose sum is σ = 340236. Its totient is φ = 336864.

The previous prime is 338543. The next prime is 338563. The reversal of 338549 is 945833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 945833 = 7 ⋅135119.

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 117649 = 470^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 338549 - 2⁸ = 338293 is a prime.

It is a super-2 number, since 2×338549² = 229230850802, 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 (338543) 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, 494 + ... + 959.

It is an arithmetic number, because the mean of its divisors is an integer number (85059).

2³³⁸⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

338549 is a deficient number, since it is larger than the sum of its proper divisors (1687).

338549 is a wasteful number, since it uses less digits than its factorization.

338549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686.

The product of its digits is 12960, while the sum is 32.

The square root of 338549 is about 581.8496369338. The cubic root of 338549 is about 69.6958916276.

The spelling of 338549 in words is "three hundred thirty-eight thousand, five hundred forty-nine".