8272180 has 72 divisors (see below), whose sum is σ = 21143808. Its totient is φ = 2705472.

The previous prime is 8272177. The next prime is 8272189. The reversal of 8272180 is 812728.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8272189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22357 + ... + 22723.

It is an arithmetic number, because the mean of its divisors is an integer number (293664).

Almost surely, 2^8272180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8272180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10571904).

8272180 is an abundant number, since it is smaller than the sum of its proper divisors (12871628).

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

8272180 is a wasteful number, since it uses less digits than its factorization.

8272180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 8272180 is about 2876.1397740722. The cubic root of 8272180 is about 202.2429192053.

The spelling of 8272180 in words is "eight million, two hundred seventy-two thousand, one hundred eighty".