82182212 has 18 divisors (see below), whose sum is σ = 167299902. Its totient is φ = 35220864.

The previous prime is 82182187. The next prime is 82182223. The reversal of 82182212 is 21228128.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 37773316 = 6664^2 + 6146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209453 + ... + 209844.

It is an arithmetic number, because the mean of its divisors is an integer number (9294439).

Almost surely, 2^82182212 is an apocalyptic number.

It is an amenable number.

82182212 is an abundant number, since it is smaller than the sum of its proper divisors (85117690).

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

82182212 is a wasteful number, since it uses less digits than its factorization.

82182212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419315 (or 419306 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 82182212 is about 9065.4405298364. The cubic root of 82182212 is about 434.7697059075.

The spelling of 82182212 in words is "eighty-two million, one hundred eighty-two thousand, two hundred twelve".