8320389120 has 416 divisors, whose sum is σ = 30384023040. Its totient is φ = 2158755840.

The previous prime is 8320389089. The next prime is 8320389137. The reversal of 8320389120 is 219830238.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22671177 + ... + 22671543.

Almost surely, 2^8320389120 is an apocalyptic number.

8320389120 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 8320389120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15192011520).

8320389120 is an abundant number, since it is smaller than the sum of its proper divisors (22063633920).

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

8320389120 is a wasteful number, since it uses less digits than its factorization.

8320389120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8320389120 is about 91216.1669880948. The cubic root of 8320389120 is about 2026.3503969385.

The spelling of 8320389120 in words is "eight billion, three hundred twenty million, three hundred eighty-nine thousand, one hundred twenty".