809805048 has 64 divisors (see below), whose sum is σ = 2255450400. Its totient is φ = 240576000.

The previous prime is 809805043. The next prime is 809805049. The reversal of 809805048 is 840508908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809805043) 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, 35703 + ... + 53798.

Almost surely, 2^809805048 is an apocalyptic number.

It is an amenable number.

809805048 is an abundant number, since it is smaller than the sum of its proper divisors (1445645352).

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

809805048 is a wasteful number, since it uses less digits than its factorization.

809805048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89552 (or 89548 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 809805048 is about 28457.0737778852. The cubic root of 809805048 is about 932.0949604533.

The spelling of 809805048 in words is "eight hundred nine million, eight hundred five thousand, forty-eight".