2516303240 has 128 divisors (see below), whose sum is σ = 6363878400. Its totient is φ = 887550720.

The previous prime is 2516303221. The next prime is 2516303267. The reversal of 2516303240 is 423036152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3386309 + ... + 3387051.

It is an arithmetic number, because the mean of its divisors is an integer number (49717800).

Almost surely, 2^2516303240 is an apocalyptic number.

2516303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2516303240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3181939200).

2516303240 is an abundant number, since it is smaller than the sum of its proper divisors (3847575160).

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

2516303240 is a wasteful number, since it uses less digits than its factorization.

2516303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2516303240 is about 50162.7674675152. The cubic root of 2516303240 is about 1360.1526717303.

Adding to 2516303240 its reverse (423036152), we get a palindrome (2939339392).

The spelling of 2516303240 in words is "two billion, five hundred sixteen million, three hundred three thousand, two hundred forty".