2809043046 has 48 divisors (see below), whose sum is σ = 6197527440. Its totient is φ = 919287360.

The previous prime is 2809042981. The next prime is 2809043047. The reversal of 2809043046 is 6403409082.

It is a happy number.

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 2809043046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809043047) 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 23 ways as a sum of consecutive naturals, for example, 677596 + ... + 681728.

It is an arithmetic number, because the mean of its divisors is an integer number (129115155).

Almost surely, 2^2809043046 is an apocalyptic number.

2809043046 is an abundant number, since it is smaller than the sum of its proper divisors (3388484394).

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

2809043046 is a wasteful number, since it uses less digits than its factorization.

2809043046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4818 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2809043046 is about 53000.4060927839. The cubic root of 2809043046 is about 1410.9754740735.

The spelling of 2809043046 in words is "two billion, eight hundred nine million, forty-three thousand, forty-six".