2520820304 has 80 divisors (see below), whose sum is σ = 5195334144. Its totient is φ = 1182988800.

The previous prime is 2520820297. The next prime is 2520820319. The reversal of 2520820304 is 4030280252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3860042 + ... + 3860694.

Almost surely, 2^2520820304 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 2520820304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2597667072).

2520820304 is an abundant number, since it is smaller than the sum of its proper divisors (2674513840).

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

2520820304 is a wasteful number, since it uses less digits than its factorization.

2520820304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2520820304 is about 50207.7713506585. The cubic root of 2520820304 is about 1360.9660638910.

The spelling of 2520820304 in words is "two billion, five hundred twenty million, eight hundred twenty thousand, three hundred four".