439042 has 16 divisors (see below), whose sum is σ = 718200. Its totient is φ = 200448.

The previous prime is 439009. The next prime is 439063. The reversal of 439042 is 240934.

It can be written as a sum of positive squares in 4 ways, for example, as 434281 + 4761 = 659^2 + 69^2 .

It is an unprimeable number.

439042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084 + ... + 1432.

2⁴³⁹⁰⁴² is an apocalyptic number.

439042 is a deficient number, since it is larger than the sum of its proper divisors (279158).

439042 is a wasteful number, since it uses less digits than its factorization.

439042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 439042 is about 662.6024449095. The cubic root of 439042 is about 76.0038086734.

Adding to 439042 its reverse (240934), we get a palindrome (679976).

The spelling of 439042 in words is "four hundred thirty-nine thousand, forty-two".