804925680 has 80 divisors (see below), whose sum is σ = 2687223840. Its totient is φ = 198134784.

The previous prime is 804925679. The next prime is 804925697. The reversal of 804925680 is 86529408.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125875 + ... + 132114.

It is an arithmetic number, because the mean of its divisors is an integer number (33590298).

Almost surely, 2^804925680 is an apocalyptic number.

804925680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804925680 is an abundant number, since it is smaller than the sum of its proper divisors (1882298160).

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

804925680 is a wasteful number, since it uses less digits than its factorization.

804925680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258018 (or 258012 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 804925680 is about 28371.2121700854. The cubic root of 804925680 is about 930.2191182155.

The spelling of 804925680 in words is "eight hundred four million, nine hundred twenty-five thousand, six hundred eighty".