9928386384 has 80 divisors (see below), whose sum is σ = 29434247040. Its totient is φ = 2824888320.

The previous prime is 9928386373. The next prime is 9928386409. The reversal of 9928386384 is 4836838299.

9928386384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19672 + ... + 142280.

It is an arithmetic number, because the mean of its divisors is an integer number (367928088).

Almost surely, 2^9928386384 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 9928386384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14717123520).

9928386384 is an abundant number, since it is smaller than the sum of its proper divisors (19505860656).

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

9928386384 is a wasteful number, since it uses less digits than its factorization.

9928386384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122868 (or 122862 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 60.

The square root of 9928386384 is about 99641.2885504799. The cubic root of 9928386384 is about 2149.2794689569.

The spelling of 9928386384 in words is "nine billion, nine hundred twenty-eight million, three hundred eighty-six thousand, three hundred eighty-four".