2991340829 has 16 divisors (see below), whose sum is σ = 3215160000. Its totient is φ = 2774393856.

The previous prime is 2991340801. The next prime is 2991340879. The reversal of 2991340829 is 9280431992.

2991340829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2991340829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991340879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499517 + ... + 505469.

It is an arithmetic number, because the mean of its divisors is an integer number (200947500).

Almost surely, 2^2991340829 is an apocalyptic number.

It is an amenable number.

2991340829 is a deficient number, since it is larger than the sum of its proper divisors (223819171).

2991340829 is a wasteful number, since it uses less digits than its factorization.

2991340829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 2991340829 is about 54693.1515731175. The cubic root of 2991340829 is about 1440.8606013408.

The spelling of 2991340829 in words is "two billion, nine hundred ninety-one million, three hundred forty thousand, eight hundred twenty-nine".