439142 has 8 divisors (see below), whose sum is σ = 718632. Its totient is φ = 199600.

The previous prime is 439141. The next prime is 439157. The reversal of 439142 is 241934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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 439142.

It is not an unprimeable number, because it can be changed into a prime (439141) by changing a digit.

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, 9959 + ... + 10002.

It is an arithmetic number, because the mean of its divisors is an integer number (89829).

2⁴³⁹¹⁴² is an apocalyptic number.

439142 is a deficient number, since it is larger than the sum of its proper divisors (279490).

439142 is a wasteful number, since it uses less digits than its factorization.

439142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19974.

The product of its digits is 864, while the sum is 23.

The square root of 439142 is about 662.6779006425. The cubic root of 439142 is about 76.0095786634.

The spelling of 439142 in words is "four hundred thirty-nine thousand, one hundred forty-two".