1320672929 has 8 divisors (see below), whose sum is σ = 1325201472. Its totient is φ = 1316152240.

The previous prime is 1320672883. The next prime is 1320672953. The reversal of 1320672929 is 9292760231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320672929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320672959) 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 7 ways as a sum of consecutive naturals, for example, 668387 + ... + 670359.

It is an arithmetic number, because the mean of its divisors is an integer number (165650184).

Almost surely, 2^1320672929 is an apocalyptic number.

It is an amenable number.

1320672929 is a deficient number, since it is larger than the sum of its proper divisors (4528543).

1320672929 is a wasteful number, since it uses less digits than its factorization.

1320672929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 1320672929 is about 36341.0639497525. The cubic root of 1320672929 is about 1097.1476871718.

The spelling of 1320672929 in words is "one billion, three hundred twenty million, six hundred seventy-two thousand, nine hundred twenty-nine".