4218212 has 12 divisors (see below), whose sum is σ = 7397040. Its totient is φ = 2104776.

The previous prime is 4218199. The next prime is 4218241. The reversal of 4218212 is 2128124.

It is a happy number.

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, 2243 + ... + 3669.

It is an arithmetic number, because the mean of its divisors is an integer number (616420).

Almost surely, 2^4218212 is an apocalyptic number.

It is an amenable number.

4218212 is a deficient number, since it is larger than the sum of its proper divisors (3178828).

4218212 is a wasteful number, since it uses less digits than its factorization.

4218212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170 (or 2168 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 4218212 is about 2053.8286199194. The cubic root of 4218212 is about 161.5757328034.

The spelling of 4218212 in words is "four million, two hundred eighteen thousand, two hundred twelve".