4449020928 has 132 divisors (see below), whose sum is σ = 13035377880. Its totient is φ = 1348075520.

The previous prime is 4449020861. The next prime is 4449020969. The reversal of 4449020928 is 8290209444.

It is a tau number, because it is divible by the number of its divisors (132).

It is a self number, because there is not a number n which added to its sum of digits gives 4449020928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365728 + ... + 377696.

Almost surely, 2^4449020928 is an apocalyptic number.

4449020928 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 4449020928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6517688940).

4449020928 is an abundant number, since it is smaller than the sum of its proper divisors (8586356952).

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

4449020928 is a wasteful number, since it uses less digits than its factorization.

4449020928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12014 (or 11985 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 4449020928 is about 66700.9814620445. The cubic root of 4449020928 is about 1644.7055182497.

The spelling of 4449020928 in words is "four billion, four hundred forty-nine million, twenty thousand, nine hundred twenty-eight".