2109328580 has 12 divisors (see below), whose sum is σ = 4429590060. Its totient is φ = 843731424.

The previous prime is 2109328561. The next prime is 2109328589. The reversal of 2109328580 is 858239012.

It can be written as a sum of positive squares in 2 ways, for example, as 368102596 + 1741225984 = 19186^2 + 41728^2 .

It is not an unprimeable number, because it can be changed into a prime (2109328589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52733195 + ... + 52733234.

It is an arithmetic number, because the mean of its divisors is an integer number (369132505).

Almost surely, 2^2109328580 is an apocalyptic number.

2109328580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2109328580 is an abundant number, since it is smaller than the sum of its proper divisors (2320261480).

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

2109328580 is a wasteful number, since it uses less digits than its factorization.

2109328580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105466438 (or 105466436 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2109328580 is about 45927.4273174538. The cubic root of 2109328580 is about 1282.4725522842.

The spelling of 2109328580 in words is "two billion, one hundred nine million, three hundred twenty-eight thousand, five hundred eighty".