439980064 has 48 divisors (see below), whose sum is σ = 907708032. Its totient is φ = 209532928.

The previous prime is 439980029. The next prime is 439980071. The reversal of 439980064 is 460089934.

It is a self number, because there is not a number n which added to its sum of digits gives 439980064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192432 + ... + 194704.

It is an arithmetic number, because the mean of its divisors is an integer number (18910584).

Almost surely, 2^439980064 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 439980064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453854016).

439980064 is an abundant number, since it is smaller than the sum of its proper divisors (467727968).

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

439980064 is a wasteful number, since it uses less digits than its factorization.

439980064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 439980064 is about 20975.7017522656. The cubic root of 439980064 is about 760.5790047575.

The spelling of 439980064 in words is "four hundred thirty-nine million, nine hundred eighty thousand, sixty-four".