2808303745 has 32 divisors (see below), whose sum is σ = 3691261728. Its totient is φ = 2038652928.

The previous prime is 2808303731. The next prime is 2808303781. The reversal of 2808303745 is 5473038082.

It can be written as a sum of positive squares in 16 ways, for example, as 2209376016 + 598927729 = 47004^2 + 24473^2 .

It is not a de Polignac number, because 2808303745 - 2¹¹ = 2808301697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2808303698 and 2808303707.

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 31 ways as a sum of consecutive naturals, for example, 988467 + ... + 991303.

It is an arithmetic number, because the mean of its divisors is an integer number (115351929).

Almost surely, 2^2808303745 is an apocalyptic number.

It is an amenable number.

2808303745 is a deficient number, since it is larger than the sum of its proper divisors (882957983).

2808303745 is a wasteful number, since it uses less digits than its factorization.

2808303745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2808303745 is about 52993.4311495302. The cubic root of 2808303745 is about 1410.8516801826.

The spelling of 2808303745 in words is "two billion, eight hundred eight million, three hundred three thousand, seven hundred forty-five".