2809028041 has 4 divisors (see below), whose sum is σ = 2809153152. Its totient is φ = 2808902932.

The previous prime is 2809027993. The next prime is 2809028069. The reversal of 2809028041 is 1408209082.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2809028041 - 2¹¹ = 2809025993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2809027988 and 2809028006.

It is not an unprimeable number, because it can be changed into a prime (2809028741) 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, 18565 + ... + 77218.

It is an arithmetic number, because the mean of its divisors is an integer number (702288288).

Almost surely, 2^2809028041 is an apocalyptic number.

It is an amenable number.

2809028041 is a deficient number, since it is larger than the sum of its proper divisors (125111).

2809028041 is an equidigital number, since it uses as much as digits as its factorization.

2809028041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125110.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 2809028041 is about 53000.2645370757. The cubic root of 2809028041 is about 1410.9729617441.

The spelling of 2809028041 in words is "two billion, eight hundred nine million, twenty-eight thousand, forty-one".