1328288885 has 64 divisors (see below), whose sum is σ = 2068070400. Its totient is φ = 794707200.

The previous prime is 1328288881. The next prime is 1328288887. The reversal of 1328288885 is 5888828231.

It is not a de Polignac number, because 1328288885 - 2² = 1328288881 is a prime.

It is a Curzon number.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 3025496 + ... + 3025934.

It is an arithmetic number, because the mean of its divisors is an integer number (32313600).

Almost surely, 2^1328288885 is an apocalyptic number.

It is an amenable number.

1328288885 is a deficient number, since it is larger than the sum of its proper divisors (739781515).

1328288885 is a wasteful number, since it uses less digits than its factorization.

1328288885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 1966080, while the sum is 53.

The square root of 1328288885 is about 36445.6977570742. The cubic root of 1328288885 is about 1099.2526286933.

The spelling of 1328288885 in words is "one billion, three hundred twenty-eight million, two hundred eighty-eight thousand, eight hundred eighty-five".