439000 has 32 divisors (see below), whose sum is σ = 1029600. Its totient is φ = 175200.

The previous prime is 438989. The next prime is 439007. The reversal of 439000 is 934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439007) by changing a digit.

439000 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, 781 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (32175).

2⁴³⁹⁰⁰⁰ is an apocalyptic number.

439000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514800).

439000 is an abundant number, since it is smaller than the sum of its proper divisors (590600).

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

439000 is a wasteful number, since it uses less digits than its factorization.

439000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 439000 is about 662.5707509391. The cubic root of 439000 is about 76.0013850163.

Adding to 439000 its reverse (934), we get a palindrome (439934).

The spelling of 439000 in words is "four hundred thirty-nine thousand".