2491309296 has 240 divisors, whose sum is σ = 8366512128. Its totient is φ = 677030400.

The previous prime is 2491309259. The next prime is 2491309309. The reversal of 2491309296 is 6929031942.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1905475 + ... + 1906781.

Almost surely, 2^2491309296 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 2491309296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4183256064).

2491309296 is an abundant number, since it is smaller than the sum of its proper divisors (5875202832).

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

2491309296 is a wasteful number, since it uses less digits than its factorization.

2491309296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2491309296 is about 49913.0173000992. The cubic root of 2491309296 is about 1355.6343024077.

The spelling of 2491309296 in words is "two billion, four hundred ninety-one million, three hundred nine thousand, two hundred ninety-six".