1323281768 has 16 divisors (see below), whose sum is σ = 2627103780. Its totient is φ = 622720768.

The previous prime is 1323281761. The next prime is 1323281833. The reversal of 1323281768 is 8671823231.

It can be written as a sum of positive squares in 2 ways, for example, as 1215080164 + 108201604 = 34858^2 + 10402^2 .

It is not an unprimeable number, because it can be changed into a prime (1323281761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4864871 + ... + 4865142.

Almost surely, 2^1323281768 is an apocalyptic number.

It is an amenable number.

1323281768 is a deficient number, since it is larger than the sum of its proper divisors (1303822012).

1323281768 is a wasteful number, since it uses less digits than its factorization.

1323281768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9730036 (or 9730032 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 1323281768 is about 36376.9400582292. The cubic root of 1323281768 is about 1097.8696421121.

The spelling of 1323281768 in words is "one billion, three hundred twenty-three million, two hundred eighty-one thousand, seven hundred sixty-eight".