8446218 has 16 divisors (see below), whose sum is σ = 18428256. Its totient is φ = 2559440.

The previous prime is 8446201. The next prime is 8446223. The reversal of 8446218 is 8126448.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63921 + ... + 64052.

It is an arithmetic number, because the mean of its divisors is an integer number (1151766).

Almost surely, 2^8446218 is an apocalyptic number.

8446218 is an abundant number, since it is smaller than the sum of its proper divisors (9982038).

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

8446218 is a wasteful number, since it uses less digits than its factorization.

8446218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127989.

The product of its digits is 12288, while the sum is 33.

The square root of 8446218 is about 2906.2377741678. The cubic root of 8446218 is about 203.6514135324.

The spelling of 8446218 in words is "eight million, four hundred forty-six thousand, two hundred eighteen".