80404808440 has 32 divisors (see below), whose sum is σ = 197357258160. Its totient is φ = 29238112000.

The previous prime is 80404808431. The next prime is 80404808443. The reversal of 80404808440 is 4480840408.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 80404808393 and 80404808402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80404808443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91368661 + ... + 91369540.

Almost surely, 2^80404808440 is an apocalyptic number.

It is an amenable number.

80404808440 is an abundant number, since it is smaller than the sum of its proper divisors (116952449720).

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

80404808440 is a wasteful number, since it uses less digits than its factorization.

80404808440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182738223 (or 182738219 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 80404808440 in words is "eighty billion, four hundred four million, eight hundred eight thousand, four hundred forty".