80806340 has 12 divisors (see below), whose sum is σ = 169693356. Its totient is φ = 32322528.

The previous prime is 80806339. The next prime is 80806351. The reversal of 80806340 is 4360808.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 29855296 = 7138^2 + 5464^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020139 + ... + 2020178.

It is an arithmetic number, because the mean of its divisors is an integer number (14141113).

Almost surely, 2^80806340 is an apocalyptic number.

It is an amenable number.

80806340 is an abundant number, since it is smaller than the sum of its proper divisors (88887016).

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

80806340 is a wasteful number, since it uses less digits than its factorization.

80806340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040326 (or 4040324 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 80806340 is about 8989.2346726515. The cubic root of 80806340 is about 432.3297736327.

The spelling of 80806340 in words is "eighty million, eight hundred six thousand, three hundred forty".