2409991794 has 72 divisors (see below), whose sum is σ = 6088210128. Its totient is φ = 686977200.

The previous prime is 2409991783. The next prime is 2409991799. The reversal of 2409991794 is 4971999042.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2409991794.

It is not an unprimeable number, because it can be changed into a prime (2409991799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 408969 + ... + 414819.

It is an arithmetic number, because the mean of its divisors is an integer number (84558474).

Almost surely, 2^2409991794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2409991794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044105064).

2409991794 is an abundant number, since it is smaller than the sum of its proper divisors (3678218334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2409991794 is a wasteful number, since it uses less digits than its factorization.

2409991794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 2409991794 is about 49091.6672562666. The cubic root of 2409991794 is about 1340.7213376969.

The spelling of 2409991794 in words is "two billion, four hundred nine million, nine hundred ninety-one thousand, seven hundred ninety-four".