2620560800 has 144 divisors (see below), whose sum is σ = 7516206432. Its totient is φ = 879590400.

The previous prime is 2620560791. The next prime is 2620560823. The reversal of 2620560800 is 80650262.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102947 + ... + 125853.

It is an arithmetic number, because the mean of its divisors is an integer number (52195878).

Almost surely, 2^2620560800 is an apocalyptic number.

2620560800 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 2620560800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3758103216).

2620560800 is an abundant number, since it is smaller than the sum of its proper divisors (4895645632).

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

2620560800 is a wasteful number, since it uses less digits than its factorization.

2620560800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22951 (or 22938 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2620560800 is about 51191.4133424738. The cubic root of 2620560800 is about 1378.6840357040.

The spelling of 2620560800 in words is "two billion, six hundred twenty million, five hundred sixty thousand, eight hundred".