439055 has 4 divisors (see below), whose sum is σ = 526872. Its totient is φ = 351240.

The previous prime is 439009. The next prime is 439063. The reversal of 439055 is 550934.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-439055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable 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, 43901 + ... + 43910.

It is an arithmetic number, because the mean of its divisors is an integer number (131718).

2⁴³⁹⁰⁵⁵ is an apocalyptic number.

439055 is a deficient number, since it is larger than the sum of its proper divisors (87817).

439055 is an equidigital number, since it uses as much as digits as its factorization.

439055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87816.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 439055 is about 662.6122546407. The cubic root of 439055 is about 76.0045588216.

Adding to 439055 its reverse (550934), we get a palindrome (989989).

The spelling of 439055 in words is "four hundred thirty-nine thousand, fifty-five".