2009318418 has 24 divisors (see below), whose sum is σ = 4503645900. Its totient is φ = 646677024.

The previous prime is 2009318393. The next prime is 2009318429. The reversal of 2009318418 is 8148139002.

2009318418 is a `hidden beast` number, since 200 + 9 + 31 + 8 + 418 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2001041289 + 8277129 = 44733^2 + 2877^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1924113 + ... + 1925156.

Almost surely, 2^2009318418 is an apocalyptic number.

2009318418 is an abundant number, since it is smaller than the sum of its proper divisors (2494327482).

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

2009318418 is a wasteful number, since it uses less digits than its factorization.

2009318418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849306 (or 3849303 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 2009318418 is about 44825.4215596463. The cubic root of 2009318418 is about 1261.8747639401.

The spelling of 2009318418 in words is "two billion, nine million, three hundred eighteen thousand, four hundred eighteen".