2109845320 has 32 divisors (see below), whose sum is σ = 5178712320. Its totient is φ = 767216320.

The previous prime is 2109845317. The next prime is 2109845321. The reversal of 2109845320 is 235489012.

It is not an unprimeable number, because it can be changed into a prime (2109845321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2397112 + ... + 2397991.

It is an arithmetic number, because the mean of its divisors is an integer number (161834760).

Almost surely, 2^2109845320 is an apocalyptic number.

2109845320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2109845320 is an abundant number, since it is smaller than the sum of its proper divisors (3068867000).

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

2109845320 is a wasteful number, since it uses less digits than its factorization.

2109845320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795125 (or 4795121 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2109845320 is about 45933.0525874342. The cubic root of 2109845320 is about 1282.5772697701.

The spelling of 2109845320 in words is "two billion, one hundred nine million, eight hundred forty-five thousand, three hundred twenty".