8422418 has 8 divisors (see below), whose sum is σ = 12645948. Its totient is φ = 4207104.

The previous prime is 8422411. The next prime is 8422451. The reversal of 8422418 is 8142248.

It can be written as a sum of positive squares in 2 ways, for example, as 7879249 + 543169 = 2807^2 + 737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8422411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2930 + ... + 5042.

Almost surely, 2^8422418 is an apocalyptic number.

8422418 is a deficient number, since it is larger than the sum of its proper divisors (4223530).

8422418 is a wasteful number, since it uses less digits than its factorization.

8422418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108.

The product of its digits is 4096, while the sum is 29.

The square root of 8422418 is about 2902.1402447160. The cubic root of 8422418 is about 203.4599486122.

The spelling of 8422418 in words is "eight million, four hundred twenty-two thousand, four hundred eighteen".