3946218 has 8 divisors (see below), whose sum is σ = 7892448. Its totient is φ = 1315404.

The previous prime is 3946213. The next prime is 3946219. The reversal of 3946218 is 8126493.

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

3946218 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3946211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328846 + ... + 328857.

It is an arithmetic number, because the mean of its divisors is an integer number (986556).

Almost surely, 2^3946218 is an apocalyptic number.

3946218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3946218 is a wasteful number, since it uses less digits than its factorization.

3946218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657708.

The product of its digits is 10368, while the sum is 33.

The square root of 3946218 is about 1986.5089982177. The cubic root of 3946218 is about 158.0254458830.

The spelling of 3946218 in words is "three million, nine hundred forty-six thousand, two hundred eighteen".