3218422 has 4 divisors (see below), whose sum is σ = 4827636. Its totient is φ = 1609210.

The previous prime is 3218417. The next prime is 3218431. The reversal of 3218422 is 2248123.

It is a semiprime because it is the product of two primes.

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 a d-powerful number, because it can be written as 3¹² + 2¹⁵ + 1 + 8⁵ + 4 + 2¹⁹ + 2²¹ .

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3218393 and 3218402.

It is a congruent 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, 804604 + ... + 804607.

It is an arithmetic number, because the mean of its divisors is an integer number (1206909).

Almost surely, 2^3218422 is an apocalyptic number.

3218422 is a deficient number, since it is larger than the sum of its proper divisors (1609214).

3218422 is a wasteful number, since it uses less digits than its factorization.

3218422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609213.

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

The square root of 3218422 is about 1793.9960981006. The cubic root of 3218422 is about 147.6434991490.

Subtracting from 3218422 its reverse (2248123), we obtain a cube (970299 = 99³).

The spelling of 3218422 in words is "three million, two hundred eighteen thousand, four hundred twenty-two".