8434218 has 16 divisors (see below), whose sum is σ = 18166176. Its totient is φ = 2595120.

The previous prime is 8434213. The next prime is 8434219. The reversal of 8434218 is 8124348.

It is a super-2 number, since 2×8434218² = 142272066543048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8434213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53988 + ... + 54143.

It is an arithmetic number, because the mean of its divisors is an integer number (1135386).

Almost surely, 2^8434218 is an apocalyptic number.

8434218 is an abundant number, since it is smaller than the sum of its proper divisors (9731958).

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

8434218 is a wasteful number, since it uses less digits than its factorization.

8434218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108149.

The product of its digits is 6144, while the sum is 30.

The square root of 8434218 is about 2904.1725155369. The cubic root of 8434218 is about 203.5549216181.

The spelling of 8434218 in words is "eight million, four hundred thirty-four thousand, two hundred eighteen".