2009918316 has 96 divisors (see below), whose sum is σ = 5469184000. Its totient is φ = 562655808.

The previous prime is 2009918297. The next prime is 2009918353. The reversal of 2009918316 is 6138199002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921315 + ... + 923493.

Almost surely, 2^2009918316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009918316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2734592000).

2009918316 is an abundant number, since it is smaller than the sum of its proper divisors (3459265684).

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

2009918316 is a wasteful number, since it uses less digits than its factorization.

2009918316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 2009918316 is about 44832.1125533919. The cubic root of 2009918316 is about 1262.0003323613. Note that the first 3 decimals are identical.

The spelling of 2009918316 in words is "two billion, nine million, nine hundred eighteen thousand, three hundred sixteen".