4428970728 has 128 divisors (see below), whose sum is σ = 13678667520. Its totient is φ = 1163704320.

The previous prime is 4428970727. The next prime is 4428970739. The reversal of 4428970728 is 8270798244.

It is not an unprimeable number, because it can be changed into a prime (4428970727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601308 + ... + 608628.

It is an arithmetic number, because the mean of its divisors is an integer number (106864590).

Almost surely, 2^4428970728 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 4428970728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6839333760).

4428970728 is an abundant number, since it is smaller than the sum of its proper divisors (9249696792).

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

4428970728 is a wasteful number, since it uses less digits than its factorization.

4428970728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 4428970728 is about 66550.5126050882. The cubic root of 4428970728 is about 1642.2310909035.

The spelling of 4428970728 in words is "four billion, four hundred twenty-eight million, nine hundred seventy thousand, seven hundred twenty-eight".