1329240568 has 16 divisors (see below), whose sum is σ = 2572724160. Its totient is φ = 643180800.

The previous prime is 1329240533. The next prime is 1329240613. The reversal of 1329240568 is 8650429231.

It is a self number, because there is not a number n which added to its sum of digits gives 1329240568.

It is a congruent number.

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, 2679673 + ... + 2680168.

It is an arithmetic number, because the mean of its divisors is an integer number (160795260).

Almost surely, 2^1329240568 is an apocalyptic number.

It is an amenable number.

1329240568 is a deficient number, since it is larger than the sum of its proper divisors (1243483592).

1329240568 is a wasteful number, since it uses less digits than its factorization.

1329240568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359878 (or 5359874 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1329240568 is about 36458.7515968389. The cubic root of 1329240568 is about 1099.5150942626.

Adding to 1329240568 its reverse (8650429231), we get a palindrome (9979669799).

The spelling of 1329240568 in words is "one billion, three hundred twenty-nine million, two hundred forty thousand, five hundred sixty-eight".