2009831329 has 4 divisors (see below), whose sum is σ = 2192543280. Its totient is φ = 1827119380.

The previous prime is 2009831323. The next prime is 2009831371. The reversal of 2009831329 is 9231389002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2009831329 - 2⁵ = 2009831297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009831323) 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 3 ways as a sum of consecutive naturals, for example, 91355959 + ... + 91355980.

It is an arithmetic number, because the mean of its divisors is an integer number (548135820).

Almost surely, 2^2009831329 is an apocalyptic number.

It is an amenable number.

2009831329 is a deficient number, since it is larger than the sum of its proper divisors (182711951).

2009831329 is a wasteful number, since it uses less digits than its factorization.

2009831329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182711950.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2009831329 is about 44831.1424012371. The cubic root of 2009831329 is about 1261.9821261145.

It can be divided in two parts, 2009 and 831329, that added together give a palindrome (833338).

The spelling of 2009831329 in words is "two billion, nine million, eight hundred thirty-one thousand, three hundred twenty-nine".