2001609829 has 8 divisors (see below), whose sum is σ = 2066704640. Its totient is φ = 1936548000.

The previous prime is 2001609811. The next prime is 2001609839. The reversal of 2001609829 is 9289061002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001609829 - 2⁹ = 2001609317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001609809) 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, 194977 + ... + 204985.

It is an arithmetic number, because the mean of its divisors is an integer number (258338080).

Almost surely, 2^2001609829 is an apocalyptic number.

It is an amenable number.

2001609829 is a deficient number, since it is larger than the sum of its proper divisors (65094811).

2001609829 is a wasteful number, since it uses less digits than its factorization.

2001609829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 2001609829 is about 44739.3543650330. The cubic root of 2001609829 is about 1260.2590021442.

The spelling of 2001609829 in words is "two billion, one million, six hundred nine thousand, eight hundred twenty-nine".