2643920448 has 56 divisors (see below), whose sum is σ = 7533485568. Its totient is φ = 813513216.

The previous prime is 2643920437. The next prime is 2643920491. The reversal of 2643920448 is 8440293462.

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 7 ways as a sum of consecutive naturals, for example, 527136 + ... + 532127.

It is an arithmetic number, because the mean of its divisors is an integer number (134526528).

Almost surely, 2^2643920448 is an apocalyptic number.

It is an amenable number.

2643920448 is an abundant number, since it is smaller than the sum of its proper divisors (4889565120).

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

2643920448 is a wasteful number, since it uses less digits than its factorization.

2643920448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059291 (or 1059281 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 2643920448 is about 51419.0669693646. The cubic root of 2643920448 is about 1382.7684479038.

The spelling of 2643920448 in words is "two billion, six hundred forty-three million, nine hundred twenty thousand, four hundred forty-eight".