2805434812 has 12 divisors (see below), whose sum is σ = 4910080896. Its totient is φ = 1402554560.

The previous prime is 2805434791. The next prime is 2805434813. The reversal of 2805434812 is 2184345082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805434813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348 + ... + 74980.

It is an arithmetic number, because the mean of its divisors is an integer number (409173408).

Almost surely, 2^2805434812 is an apocalyptic number.

It is an amenable number.

2805434812 is a deficient number, since it is larger than the sum of its proper divisors (2104646084).

2805434812 is a wasteful number, since it uses less digits than its factorization.

2805434812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81428 (or 81426 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 2805434812 is about 52966.3554721297. The cubic root of 2805434812 is about 1410.3710795027.

Adding to 2805434812 its reverse (2184345082), we get a palindrome (4989779894).

The spelling of 2805434812 in words is "two billion, eight hundred five million, four hundred thirty-four thousand, eight hundred twelve".