809476044 has 48 divisors (see below), whose sum is σ = 2064453888. Its totient is φ = 245348928.

The previous prime is 809476033. The next prime is 809476067. The reversal of 809476044 is 440674908.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 809475987 and 809476005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28272 + ... + 49175.

It is an arithmetic number, because the mean of its divisors is an integer number (43009456).

Almost surely, 2^809476044 is an apocalyptic number.

It is an amenable number.

809476044 is an abundant number, since it is smaller than the sum of its proper divisors (1254977844).

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

809476044 is a wasteful number, since it uses less digits than its factorization.

809476044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77534 (or 77532 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 809476044 is about 28451.2924838222. The cubic root of 809476044 is about 931.9687142205.

The spelling of 809476044 in words is "eight hundred nine million, four hundred seventy-six thousand, forty-four".