439808 has 20 divisors (see below), whose sum is σ = 879780. Its totient is φ = 219648.

The previous prime is 439799. The next prime is 439811. The reversal of 439808 is 808934.

439808 is nontrivially palindromic in base 15.

439808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable 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, 83 + ... + 941.

It is an arithmetic number, because the mean of its divisors is an integer number (43989).

2⁴³⁹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439890).

439808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439808 is an frugal number, since it uses more digits than its factorization.

439808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 439808 is about 663.1802168340. The cubic root of 439808 is about 76.0479844712.

The spelling of 439808 in words is "four hundred thirty-nine thousand, eight hundred eight".