439284 has 12 divisors (see below), whose sum is σ = 1025024. Its totient is φ = 146424.

The previous prime is 439279. The next prime is 439289. The reversal of 439284 is 482934.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (439279) and next prime (439289).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439289) by changing a digit.

439284 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 3 ways as a sum of consecutive naturals, for example, 18292 + ... + 18315.

2⁴³⁹²⁸⁴ is an apocalyptic number.

It is an amenable number.

439284 is an abundant number, since it is smaller than the sum of its proper divisors (585740).

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

439284 is a wasteful number, since it uses less digits than its factorization.

439284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36614 (or 36612 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 439284 is about 662.7850330235. The cubic root of 439284 is about 76.0177705444.

The spelling of 439284 in words is "four hundred thirty-nine thousand, two hundred eighty-four".