3440218 has 4 divisors (see below), whose sum is σ = 5160330. Its totient is φ = 1720108.

The previous prime is 3440209. The next prime is 3440237. The reversal of 3440218 is 8120443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8120443 = 1277 ⋅6359.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 727609 = 1647^2 + 853^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 860053 + ... + 860056.

Almost surely, 2^3440218 is an apocalyptic number.

3440218 is a deficient number, since it is larger than the sum of its proper divisors (1720112).

3440218 is a wasteful number, since it uses less digits than its factorization.

3440218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720111.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3440218 is about 1854.7824670295. The cubic root of 3440218 is about 150.9600350355.

The spelling of 3440218 in words is "three million, four hundred forty thousand, two hundred eighteen".