82802180 has 12 divisors (see below), whose sum is σ = 173884620. Its totient is φ = 33120864.

The previous prime is 82802179. The next prime is 82802183. The reversal of 82802180 is 8120828.

It can be written as a sum of positive squares in 2 ways, for example, as 51955264 + 30846916 = 7208^2 + 5554^2 .

It is not an unprimeable number, because it can be changed into a prime (82802183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2070035 + ... + 2070074.

It is an arithmetic number, because the mean of its divisors is an integer number (14490385).

Almost surely, 2^82802180 is an apocalyptic number.

It is an amenable number.

82802180 is an abundant number, since it is smaller than the sum of its proper divisors (91082440).

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

82802180 is a wasteful number, since it uses less digits than its factorization.

82802180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140118 (or 4140116 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 82802180 is about 9099.5703195261. The cubic root of 82802180 is about 435.8602433419.

The spelling of 82802180 in words is "eighty-two million, eight hundred two thousand, one hundred eighty".