2009323180 has 12 divisors (see below), whose sum is σ = 4219578720. Its totient is φ = 803729264.

The previous prime is 2009323163. The next prime is 2009323201. The reversal of 2009323180 is 813239002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50233060 + ... + 50233099.

It is an arithmetic number, because the mean of its divisors is an integer number (351631560).

Almost surely, 2^2009323180 is an apocalyptic number.

2009323180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2009323180 is an abundant number, since it is smaller than the sum of its proper divisors (2210255540).

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

2009323180 is a wasteful number, since it uses less digits than its factorization.

2009323180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100466168 (or 100466166 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2009323180 is about 44825.4746767951. The cubic root of 2009323180 is about 1261.8757608027.

The spelling of 2009323180 in words is "two billion, nine million, three hundred twenty-three thousand, one hundred eighty".