4449159168 has 96 divisors (see below), whose sum is σ = 12486146400. Its totient is φ = 1404960768.

The previous prime is 4449159139. The next prime is 4449159173. The reversal of 4449159168 is 8619519444.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4449159168.

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, 97680 + ... + 135792.

It is an arithmetic number, because the mean of its divisors is an integer number (130064025).

Almost surely, 2^4449159168 is an apocalyptic number.

4449159168 is a gapful number since it is divisible by the number (48) 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 4449159168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6243073200).

4449159168 is an abundant number, since it is smaller than the sum of its proper divisors (8036987232).

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

4449159168 is a wasteful number, since it uses less digits than its factorization.

4449159168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38157 (or 38137 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 4449159168 is about 66702.0177206057. The cubic root of 4449159168 is about 1644.7225528392.

The spelling of 4449159168 in words is "four billion, four hundred forty-nine million, one hundred fifty-nine thousand, one hundred sixty-eight".