4218946 has 8 divisors (see below), whose sum is σ = 6355404. Its totient is φ = 2100480.

The previous prime is 4218917. The next prime is 4218947. The reversal of 4218946 is 6498124.

It can be written as a sum of positive squares in 2 ways, for example, as 3744225 + 474721 = 1935^2 + 689^2 .

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 (4218947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3895 + ... + 4858.

Almost surely, 2^4218946 is an apocalyptic number.

4218946 is a deficient number, since it is larger than the sum of its proper divisors (2136458).

4218946 is a wasteful number, since it uses less digits than its factorization.

4218946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996.

The product of its digits is 13824, while the sum is 34.

The square root of 4218946 is about 2054.0073028108. The cubic root of 4218946 is about 161.5851040496.

The spelling of 4218946 in words is "four million, two hundred eighteen thousand, nine hundred forty-six".