439944 has 32 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 140096.

The previous prime is 439919. The next prime is 439949. The reversal of 439944 is 449934.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (439949) by changing a digit.

439944 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, 154 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁴³⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574560).

439944 is an abundant number, since it is smaller than the sum of its proper divisors (709176).

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

439944 is a wasteful number, since it uses less digits than its factorization.

439944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 825 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 439944 is about 663.2827451397. The cubic root of 439944 is about 76.0558223308.

The spelling of 439944 in words is "four hundred thirty-nine thousand, nine hundred forty-four".