80404884440 has 32 divisors (see below), whose sum is σ = 180919252080. Its totient is φ = 32160484992.

The previous prime is 80404884403. The next prime is 80404884449. The reversal of 80404884440 is 4448840408.

It is a super-2 number, since 2×80404884440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80404884391 and 80404884400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80404884449) 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, 1414814 + ... + 1470546.

Almost surely, 2^80404884440 is an apocalyptic number.

It is an amenable number.

80404884440 is an abundant number, since it is smaller than the sum of its proper divisors (100514367640).

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

80404884440 is a wasteful number, since it uses less digits than its factorization.

80404884440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91811 (or 91807 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 80404884440 in words is "eighty billion, four hundred four million, eight hundred eighty-four thousand, four hundred forty".