2788320260 has 96 divisors (see below), whose sum is σ = 6498745344. Its totient is φ = 996464000.

The previous prime is 2788320257. The next prime is 2788320299. The reversal of 2788320260 is 620238872.

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 31 ways as a sum of consecutive naturals, for example, 5678615 + ... + 5679105.

It is an arithmetic number, because the mean of its divisors is an integer number (67695264).

Almost surely, 2^2788320260 is an apocalyptic number.

2788320260 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 2788320260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3249372672).

2788320260 is an abundant number, since it is smaller than the sum of its proper divisors (3710425084).

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

2788320260 is a wasteful number, since it uses less digits than its factorization.

2788320260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2788320260 is about 52804.5477208166. The cubic root of 2788320260 is about 1407.4972385258.

The spelling of 2788320260 in words is "two billion, seven hundred eighty-eight million, three hundred twenty thousand, two hundred sixty".