808780272 has 20 divisors (see below), whose sum is σ = 2089349160. Its totient is φ = 269593408.

The previous prime is 808780261. The next prime is 808780279. The reversal of 808780272 is 272087808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808780279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8424747 + ... + 8424842.

It is an arithmetic number, because the mean of its divisors is an integer number (104467458).

Almost surely, 2^808780272 is an apocalyptic number.

It is an amenable number.

808780272 is an abundant number, since it is smaller than the sum of its proper divisors (1280568888).

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

808780272 is a wasteful number, since it uses less digits than its factorization.

808780272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849600 (or 16849594 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 808780272 is about 28439.0624318032. The cubic root of 808780272 is about 931.7016181508.

The spelling of 808780272 in words is "eight hundred eight million, seven hundred eighty thousand, two hundred seventy-two".