2909730816 has 192 divisors, whose sum is σ = 8721367200. Its totient is φ = 958464000.

The previous prime is 2909730757. The next prime is 2909730853. The reversal of 2909730816 is 6180379092.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

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, 5584636 + ... + 5585156.

Almost surely, 2^2909730816 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 2909730816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4360683600).

2909730816 is an abundant number, since it is smaller than the sum of its proper divisors (5811636384).

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

2909730816 is a wasteful number, since it uses less digits than its factorization.

2909730816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2909730816 is about 53941.9207666913. The cubic root of 2909730816 is about 1427.6363737652.

The spelling of 2909730816 in words is "two billion, nine hundred nine million, seven hundred thirty thousand, eight hundred sixteen".