2109730320 has 80 divisors (see below), whose sum is σ = 7266856320. Its totient is φ = 562594176.

The previous prime is 2109730307. The next prime is 2109730331. The reversal of 2109730320 is 230379012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 486204 + ... + 490523.

It is an arithmetic number, because the mean of its divisors is an integer number (90835704).

Almost surely, 2^2109730320 is an apocalyptic number.

2109730320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2109730320 is an abundant number, since it is smaller than the sum of its proper divisors (5157126000).

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

2109730320 is a wasteful number, since it uses less digits than its factorization.

2109730320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976749 (or 976737 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 2109730320 is about 45931.8007485010. The cubic root of 2109730320 is about 1282.5539664716.

The spelling of 2109730320 in words is "two billion, one hundred nine million, seven hundred thirty thousand, three hundred twenty".