1329712 has 20 divisors (see below), whose sum is σ = 2640456. Its totient is φ = 648320.

The previous prime is 1329709. The next prime is 1329719. The reversal of 1329712 is 2179231.

It is not an unprimeable number, because it can be changed into a prime (1329719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358 + ... + 1669.

2^1329712 is an apocalyptic number.

It is an amenable number.

1329712 is a deficient number, since it is larger than the sum of its proper divisors (1310744).

1329712 is a wasteful number, since it uses less digits than its factorization.

1329712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076 (or 2070 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 1329712 is about 1153.1313888712. The cubic root of 1329712 is about 109.9645064549.

The spelling of 1329712 in words is "one million, three hundred twenty-nine thousand, seven hundred twelve".