80580140 has 48 divisors (see below), whose sum is σ = 181530720. Its totient is φ = 29952000.

The previous prime is 80580133. The next prime is 80580161. The reversal of 80580140 is 4108508.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18140 + ... + 22140.

It is an arithmetic number, because the mean of its divisors is an integer number (3781890).

Almost surely, 2^80580140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80580140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90765360).

80580140 is an abundant number, since it is smaller than the sum of its proper divisors (100950580).

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

80580140 is a wasteful number, since it uses less digits than its factorization.

80580140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 80580140 is about 8976.6441390979. The cubic root of 80580140 is about 431.9259918373.

Adding to 80580140 its reverse (4108508), we get a palindrome (84688648).

The spelling of 80580140 in words is "eighty million, five hundred eighty thousand, one hundred forty".