339928 has 8 divisors (see below), whose sum is σ = 637380. Its totient is φ = 169960.

The previous prime is 339907. The next prime is 339943. The reversal of 339928 is 829933.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 339893 and 339902.

It is a congruent number.

It is an unprimeable number.

339928 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21238 + ... + 21253.

2³³⁹⁹²⁸ is an apocalyptic number.

It is an amenable number.

339928 is a deficient number, since it is larger than the sum of its proper divisors (297452).

339928 is a wasteful number, since it uses less digits than its factorization.

339928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42497 (or 42493 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 339928 is about 583.0334467250. The cubic root of 339928 is about 69.7903933928.

The spelling of 339928 in words is "three hundred thirty-nine thousand, nine hundred twenty-eight".