6423218 has 8 divisors (see below), whose sum is σ = 9660060. Its totient is φ = 3203200.

The previous prime is 6423217. The next prime is 6423227. The reversal of 6423218 is 8123246.

It can be written as a sum of positive squares in 2 ways, for example, as 5368489 + 1054729 = 2317^2 + 1027^2 .

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 (6423217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203 + ... + 4806.

Almost surely, 2^6423218 is an apocalyptic number.

6423218 is a deficient number, since it is larger than the sum of its proper divisors (3236842).

6423218 is a wasteful number, since it uses less digits than its factorization.

6423218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412.

The product of its digits is 2304, while the sum is 26.

The square root of 6423218 is about 2534.4068339554. The cubic root of 6423218 is about 185.8877999078.

The spelling of 6423218 in words is "six million, four hundred twenty-three thousand, two hundred eighteen".