1328288882 has 6 divisors (see below), whose sum is σ = 1992510639. Its totient is φ = 664118670.

The previous prime is 1328288881. The next prime is 1328288887. The reversal of 1328288882 is 2888828231.

It can be written as a sum of positive squares in only one way, i.e., 664144441 + 664144441 = 25771^2 + 25771^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=25771.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1328288882.

It is not an unprimeable number, because it can be changed into a prime (1328288881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 38657 + ... + 64427.

Almost surely, 2^1328288882 is an apocalyptic number.

1328288882 is a deficient number, since it is larger than the sum of its proper divisors (664221757).

1328288882 is an frugal number, since it uses more digits than its factorization.

1328288882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51544 (or 25773 counting only the distinct ones).

The product of its digits is 786432, while the sum is 50.

The square root of 1328288882 is about 36445.6977159170. The cubic root of 1328288882 is about 1099.2526278657.

Multiplying 1328288882 by its sum of digits (50), we get a square (66414444100 = 257710²).

The spelling of 1328288882 in words is "one billion, three hundred twenty-eight million, two hundred eighty-eight thousand, eight hundred eighty-two".