2001329309 has 16 divisors (see below), whose sum is σ = 2300153856. Its totient is φ = 1705762800.

The previous prime is 2001329251. The next prime is 2001329321. The reversal of 2001329309 is 9039231002.

It is not a de Polignac number, because 2001329309 - 2¹² = 2001325213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001329389) 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 15 ways as a sum of consecutive naturals, for example, 1833854 + ... + 1834944.

It is an arithmetic number, because the mean of its divisors is an integer number (143759616).

Almost surely, 2^2001329309 is an apocalyptic number.

It is an amenable number.

2001329309 is a deficient number, since it is larger than the sum of its proper divisors (298824547).

2001329309 is a wasteful number, since it uses less digits than its factorization.

2001329309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 2001329309 is about 44736.2192077069. The cubic root of 2001329309 is about 1260.2001254729.

The spelling of 2001329309 in words is "two billion, one million, three hundred twenty-nine thousand, three hundred nine".