804400080 has 160 divisors (see below), whose sum is σ = 2772144000. Its totient is φ = 191293440.

The previous prime is 804400063. The next prime is 804400087. The reversal of 804400080 is 80004408.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 804400080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804400087) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 137046 + ... + 142794.

It is an arithmetic number, because the mean of its divisors is an integer number (17325900).

Almost surely, 2^804400080 is an apocalyptic number.

804400080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804400080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386072000).

804400080 is an abundant number, since it is smaller than the sum of its proper divisors (1967743920).

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

804400080 is a wasteful number, since it uses less digits than its factorization.

804400080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829 (or 5823 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 804400080 is about 28361.9477469373. The cubic root of 804400080 is about 930.0166027791.

Adding to 804400080 its reverse (80004408), we get a palindrome (884404488).

The spelling of 804400080 in words is "eight hundred four million, four hundred thousand, eighty".