439028 has 12 divisors (see below), whose sum is σ = 787332. Its totient is φ = 214080.

The previous prime is 439009. The next prime is 439063. The reversal of 439028 is 820934.

It can be written as a sum of positive squares in 2 ways, for example, as 13924 + 425104 = 118^2 + 652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 438988 and 439006.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 439028.

It is an unprimeable number.

439028 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, 1175 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (65611).

2⁴³⁹⁰²⁸ is an apocalyptic number.

It is an amenable number.

439028 is a deficient number, since it is larger than the sum of its proper divisors (348304).

439028 is a wasteful number, since it uses less digits than its factorization.

439028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 439028 is about 662.5918804211. The cubic root of 439028 is about 76.0030008049.

The spelling of 439028 in words is "four hundred thirty-nine thousand, twenty-eight".