338538 has 16 divisors (see below), whose sum is σ = 717120. Its totient is φ = 106176.

The previous prime is 338531. The next prime is 338543. The reversal of 338538 is 835833.

It is a super-2 number, since 2×338538² = 229215954888, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (338531) by changing a digit.

338538 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (44820).

2³³⁸⁵³⁸ is an apocalyptic number.

338538 is an abundant number, since it is smaller than the sum of its proper divisors (378582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338538 is a wasteful number, since it uses less digits than its factorization.

338538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its digits is 8640, while the sum is 30.

The square root of 338538 is about 581.8401842431. The cubic root of 338538 is about 69.6951367756.

The spelling of 338538 in words is "three hundred thirty-eight thousand, five hundred thirty-eight".