338816 has 16 divisors (see below), whose sum is σ = 675240. Its totient is φ = 169344.

The previous prime is 338803. The next prime is 338839. The reversal of 338816 is 618833.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×338816² = 229592563712, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

338816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196 + ... + 1451.

2³³⁸⁸¹⁶ is an apocalyptic number.

It is an amenable number.

338816 is a deficient number, since it is larger than the sum of its proper divisors (336424).

338816 is an equidigital number, since it uses as much as digits as its factorization.

338816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2649 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 338816 is about 582.0790324346. The cubic root of 338816 is about 69.7142089299.

The spelling of 338816 in words is "three hundred thirty-eight thousand, eight hundred sixteen".