8284420 has 12 divisors (see below), whose sum is σ = 17397324. Its totient is φ = 3313760.

The previous prime is 8284417. The next prime is 8284427. The reversal of 8284420 is 244828.

It can be written as a sum of positive squares in 2 ways, for example, as 1658944 + 6625476 = 1288^2 + 2574^2 .

It is a super-2 number, since 2×8284420² = 137263229472800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8284427) 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, 207091 + ... + 207130.

It is an arithmetic number, because the mean of its divisors is an integer number (1449777).

Almost surely, 2^8284420 is an apocalyptic number.

It is an amenable number.

8284420 is an abundant number, since it is smaller than the sum of its proper divisors (9112904).

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

8284420 is a wasteful number, since it uses less digits than its factorization.

8284420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414230 (or 414228 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 8284420 is about 2878.2668396103. The cubic root of 8284420 is about 202.3426201867.

The spelling of 8284420 in words is "eight million, two hundred eighty-four thousand, four hundred twenty".