1329229568 has 36 divisors (see below), whose sum is σ = 2657142768. Its totient is φ = 663644160.

The previous prime is 1329229567. The next prime is 1329229591. The reversal of 1329229568 is 8659229231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329229567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191405 + ... + 198227.

Almost surely, 2^1329229568 is an apocalyptic number.

It is an amenable number.

1329229568 is a deficient number, since it is larger than the sum of its proper divisors (1327913200).

1329229568 is an frugal number, since it uses more digits than its factorization.

1329229568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600 (or 7586 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 1329229568 is about 36458.6007411146. The cubic root of 1329229568 is about 1099.5120612778.

The spelling of 1329229568 in words is "one billion, three hundred twenty-nine million, two hundred twenty-nine thousand, five hundred sixty-eight".