4394218 has 8 divisors (see below), whose sum is σ = 6731712. Its totient is φ = 2150316.

The previous prime is 4394209. The next prime is 4394227. The reversal of 4394218 is 8124934.

It is an interprime number because it is at equal distance from previous prime (4394209) and next prime (4394227).

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4394218.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23280 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (841464).

Almost surely, 2^4394218 is an apocalyptic number.

4394218 is a deficient number, since it is larger than the sum of its proper divisors (2337494).

4394218 is a wasteful number, since it uses less digits than its factorization.

4394218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46796.

The product of its digits is 6912, while the sum is 31.

The square root of 4394218 is about 2096.2390130899. The cubic root of 4394218 is about 163.7924451475.

The spelling of 4394218 in words is "four million, three hundred ninety-four thousand, two hundred eighteen".