8330388640 has 96 divisors (see below), whose sum is σ = 22512639744. Its totient is φ = 2853519360.

The previous prime is 8330388631. The next prime is 8330388659. The reversal of 8330388640 is 468830338.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528320 + ... + 1533760.

It is an arithmetic number, because the mean of its divisors is an integer number (234506664).

Almost surely, 2^8330388640 is an apocalyptic number.

8330388640 is a gapful number since it is divisible by the number (80) 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 8330388640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11256319872).

8330388640 is an abundant number, since it is smaller than the sum of its proper divisors (14182251104).

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

8330388640 is a wasteful number, since it uses less digits than its factorization.

8330388640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830 (or 6822 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 8330388640 is about 91270.9627428132. The cubic root of 8330388640 is about 2027.1618341286.

The spelling of 8330388640 in words is "eight billion, three hundred thirty million, three hundred eighty-eight thousand, six hundred forty".