8274220 has 12 divisors (see below), whose sum is σ = 17375904. Its totient is φ = 3309680.

The previous prime is 8274157. The next prime is 8274229. The reversal of 8274220 is 224728.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8274229) 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, 206836 + ... + 206875.

It is an arithmetic number, because the mean of its divisors is an integer number (1447992).

Almost surely, 2^8274220 is an apocalyptic number.

It is an amenable number.

8274220 is an abundant number, since it is smaller than the sum of its proper divisors (9101684).

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

8274220 is a wasteful number, since it uses less digits than its factorization.

8274220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413720 (or 413718 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 8274220 is about 2876.4943942236. The cubic root of 8274220 is about 202.2595428622.

Adding to 8274220 its reverse (224728), we get a palindrome (8498948).

The spelling of 8274220 in words is "eight million, two hundred seventy-four thousand, two hundred twenty".