1328449412 has 12 divisors (see below), whose sum is σ = 2327505180. Its totient is φ = 663447936.

The previous prime is 1328449373. The next prime is 1328449469. The reversal of 1328449412 is 2149448231.

It can be written as a sum of positive squares in 2 ways, for example, as 598585156 + 729864256 = 24466^2 + 27016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190337 + ... + 197192.

It is an arithmetic number, because the mean of its divisors is an integer number (193958765).

Almost surely, 2^1328449412 is an apocalyptic number.

It is an amenable number.

1328449412 is a deficient number, since it is larger than the sum of its proper divisors (999055768).

1328449412 is a wasteful number, since it uses less digits than its factorization.

1328449412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388390 (or 388388 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 1328449412 is about 36447.8999669391. The cubic root of 1328449412 is about 1099.2969093767.

The spelling of 1328449412 in words is "one billion, three hundred twenty-eight million, four hundred forty-nine thousand, four hundred twelve".