2808897440 has 48 divisors (see below), whose sum is σ = 6644750112. Its totient is φ = 1122081024.

The previous prime is 2808897419. The next prime is 2808897449. The reversal of 2808897440 is 447988082.

It is a super-3 number, since 3×2808897440³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2808897449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114767 + ... + 137073.

It is an arithmetic number, because the mean of its divisors is an integer number (138432294).

Almost surely, 2^2808897440 is an apocalyptic number.

2808897440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2808897440 is an abundant number, since it is smaller than the sum of its proper divisors (3835852672).

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

2808897440 is a wasteful number, since it uses less digits than its factorization.

2808897440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23109 (or 23101 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 50.

The square root of 2808897440 is about 52999.0324439984. The cubic root of 2808897440 is about 1410.9510944727.

The spelling of 2808897440 in words is "two billion, eight hundred eight million, eight hundred ninety-seven thousand, four hundred forty".