439928 has 16 divisors (see below), whose sum is σ = 833280. Its totient is φ = 217728.

The previous prime is 439919. The next prime is 439949. The reversal of 439928 is 829934.

It is a congruent number.

It is an unprimeable number.

439928 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 in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 1232.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2⁴³⁹⁹²⁸ is an apocalyptic number.

It is an amenable number.

439928 is a deficient number, since it is larger than the sum of its proper divisors (393352).

439928 is a wasteful number, since it uses less digits than its factorization.

439928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 439928 is about 663.2706838087. The cubic root of 439928 is about 76.0549003135.

The spelling of 439928 in words is "four hundred thirty-nine thousand, nine hundred twenty-eight".