439329768 has 64 divisors (see below), whose sum is σ = 1149427200. Its totient is φ = 139760640.

The previous prime is 439329733. The next prime is 439329769. The reversal of 439329768 is 867923934.

It is a self number, because there is not a number n which added to its sum of digits gives 439329768.

It is not an unprimeable number, because it can be changed into a prime (439329769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50268 + ... + 58356.

It is an arithmetic number, because the mean of its divisors is an integer number (17959800).

Almost surely, 2^439329768 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 439329768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574713600).

439329768 is an abundant number, since it is smaller than the sum of its proper divisors (710097432).

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

439329768 is a wasteful number, since it uses less digits than its factorization.

439329768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202 (or 8198 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 439329768 is about 20960.1948464226. The cubic root of 439329768 is about 760.2041049223.

The spelling of 439329768 in words is "four hundred thirty-nine million, three hundred twenty-nine thousand, seven hundred sixty-eight".