4218006 has 32 divisors (see below), whose sum is σ = 9622368. Its totient is φ = 1221120.

The previous prime is 4218001. The next prime is 4218007. The reversal of 4218006 is 6008124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265 + ... + 2916.

It is an arithmetic number, because the mean of its divisors is an integer number (300699).

Almost surely, 2^4218006 is an apocalyptic number.

4218006 is an abundant number, since it is smaller than the sum of its proper divisors (5404362).

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

4218006 is a wasteful number, since it uses less digits than its factorization.

4218006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4218006 is about 2053.7784690662. The cubic root of 4218006 is about 161.5731025308.

The spelling of 4218006 in words is "four million, two hundred eighteen thousand, six".