804888640 has 56 divisors (see below), whose sum is σ = 2017532160. Its totient is φ = 305008128.

The previous prime is 804888629. The next prime is 804888641. The reversal of 804888640 is 46888408.

It is not an unprimeable number, because it can be changed into a prime (804888641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60112 + ... + 72271.

It is an arithmetic number, because the mean of its divisors is an integer number (36027360).

Almost surely, 2^804888640 is an apocalyptic number.

804888640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804888640 is an abundant number, since it is smaller than the sum of its proper divisors (1212643520).

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

804888640 is a wasteful number, since it uses less digits than its factorization.

804888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132419 (or 132409 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 46.

The square root of 804888640 is about 28370.5593882109. The cubic root of 804888640 is about 930.2048494677.

The spelling of 804888640 in words is "eight hundred four million, eight hundred eighty-eight thousand, six hundred forty".