2009360305 has 16 divisors (see below), whose sum is σ = 2561814864. Its totient is φ = 1507747840.

The previous prime is 2009360299. The next prime is 2009360321. The reversal of 2009360305 is 5030639002.

It can be written as a sum of positive squares in 8 ways, for example, as 888516864 + 1120843441 = 29808^2 + 33479^2 .

It is not a de Polignac number, because 2009360305 - 2¹¹ = 2009358257 is a prime.

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, 15436 + ... + 65245.

It is an arithmetic number, because the mean of its divisors is an integer number (160113429).

Almost surely, 2^2009360305 is an apocalyptic number.

It is an amenable number.

2009360305 is a deficient number, since it is larger than the sum of its proper divisors (552454559).

2009360305 is a wasteful number, since it uses less digits than its factorization.

2009360305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80996.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 2009360305 is about 44825.8887809266. Note that the first 3 decimals coincide. The cubic root of 2009360305 is about 1261.8835323830.

Adding to 2009360305 its reverse (5030639002), we get a palindrome (7039999307).

The spelling of 2009360305 in words is "two billion, nine million, three hundred sixty thousand, three hundred five".