338885 has 4 divisors (see below), whose sum is σ = 406668. Its totient is φ = 271104.

The previous prime is 338867. The next prime is 338893. The reversal of 338885 is 588833.

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 178084 + 160801 = 422^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 338885 - 2¹⁰ = 337861 is a prime.

It is a super-2 number, since 2×338885² = 229686086450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33884 + ... + 33893.

It is an arithmetic number, because the mean of its divisors is an integer number (101667).

2³³⁸⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

338885 is a deficient number, since it is larger than the sum of its proper divisors (67783).

338885 is an equidigital number, since it uses as much as digits as its factorization.

338885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67782.

The product of its digits is 23040, while the sum is 35.

The square root of 338885 is about 582.1382997192. The cubic root of 338885 is about 69.7189410499.

The spelling of 338885 in words is "three hundred thirty-eight thousand, eight hundred eighty-five".