809457080 has 16 divisors (see below), whose sum is σ = 1821278520. Its totient is φ = 323782816.

The previous prime is 809457079. The next prime is 809457109. The reversal of 809457080 is 80754908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10118174 + ... + 10118253.

Almost surely, 2^809457080 is an apocalyptic number.

It is an amenable number.

809457080 is an abundant number, since it is smaller than the sum of its proper divisors (1011821440).

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

809457080 is a wasteful number, since it uses less digits than its factorization.

809457080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20236438 (or 20236434 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 809457080 is about 28450.9592105433. The cubic root of 809457080 is about 931.9614362647.

The spelling of 809457080 in words is "eight hundred nine million, four hundred fifty-seven thousand, eighty".