4459881720 has 128 divisors (see below), whose sum is σ = 15401433600. Its totient is φ = 1012041216.

The previous prime is 4459881719. The next prime is 4459881731. The reversal of 4459881720 is 271889544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4459881720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97662 + ... + 135858.

It is an arithmetic number, because the mean of its divisors is an integer number (120323700).

Almost surely, 2^4459881720 is an apocalyptic number.

4459881720 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 4459881720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7700716800).

4459881720 is an abundant number, since it is smaller than the sum of its proper divisors (10941551880).

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

4459881720 is a wasteful number, since it uses less digits than its factorization.

4459881720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38357 (or 38353 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 4459881720 is about 66782.3458707464. The cubic root of 4459881720 is about 1646.0427629421.

The spelling of 4459881720 in words is "four billion, four hundred fifty-nine million, eight hundred eighty-one thousand, seven hundred twenty".