2808399312 has 60 divisors (see below), whose sum is σ = 7863843780. Its totient is φ = 935629824.

The previous prime is 2808399311. The next prime is 2808399317. The reversal of 2808399312 is 2139938082.

It can be written as a sum of positive squares in 2 ways, for example, as 1242139536 + 1566259776 = 35244^2 + 39576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808399311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344014 + ... + 352082.

It is an arithmetic number, because the mean of its divisors is an integer number (131064063).

Almost surely, 2^2808399312 is an apocalyptic number.

It is an amenable number.

2808399312 is an abundant number, since it is smaller than the sum of its proper divisors (5055444468).

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

2808399312 is a wasteful number, since it uses less digits than its factorization.

2808399312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500 (or 10491 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2808399312 is about 52994.3328290865. The cubic root of 2808399312 is about 1410.8676838329.

The spelling of 2808399312 in words is "two billion, eight hundred eight million, three hundred ninety-nine thousand, three hundred twelve".