80845340 has 48 divisors (see below), whose sum is σ = 174303360. Its totient is φ = 31487040.

The previous prime is 80845339. The next prime is 80845351. The reversal of 80845340 is 4354808.

It is a junction number, because it is equal to n+sod(n) for n = 80845297 and 80845306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154319 + ... + 154841.

It is an arithmetic number, because the mean of its divisors is an integer number (3631320).

Almost surely, 2^80845340 is an apocalyptic number.

It is an amenable number.

80845340 is an abundant number, since it is smaller than the sum of its proper divisors (93458020).

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

80845340 is a wasteful number, since it uses less digits than its factorization.

80845340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 80845340 is about 8991.4036723973. The cubic root of 80845340 is about 432.3993149969.

The spelling of 80845340 in words is "eighty million, eight hundred forty-five thousand, three hundred forty".