2001192729 has 8 divisors (see below), whose sum is σ = 2680012320. Its totient is φ = 1328250816.

The previous prime is 2001192719. The next prime is 2001192751. The reversal of 2001192729 is 9272911002.

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

It is not a de Polignac number, because 2001192729 - 2⁷ = 2001192601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001192729.

It is not an unprimeable number, because it can be changed into a prime (2001192719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468624 + ... + 1469985.

It is an arithmetic number, because the mean of its divisors is an integer number (335001540).

Almost surely, 2^2001192729 is an apocalyptic number.

It is an amenable number.

2001192729 is a deficient number, since it is larger than the sum of its proper divisors (678819591).

2001192729 is a wasteful number, since it uses less digits than its factorization.

2001192729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938839.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 2001192729 is about 44734.6926780547. The cubic root of 2001192729 is about 1260.1714575190.

The spelling of 2001192729 in words is "two billion, one million, one hundred ninety-two thousand, seven hundred twenty-nine".