4218322 has 4 divisors (see below), whose sum is σ = 6327486. Its totient is φ = 2109160.

The previous prime is 4218317. The next prime is 4218349. The reversal of 4218322 is 2238124.

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

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 1661521 = 1599^2 + 1289^2 .

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 a junction number, because it is equal to n+sod(n) for n = 4218293 and 4218302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054579 + ... + 1054582.

Almost surely, 2^4218322 is an apocalyptic number.

4218322 is a deficient number, since it is larger than the sum of its proper divisors (2109164).

4218322 is a wasteful number, since it uses less digits than its factorization.

4218322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109163.

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

The square root of 4218322 is about 2053.8553989996. The cubic root of 4218322 is about 161.5771372829.

The spelling of 4218322 in words is "four million, two hundred eighteen thousand, three hundred twenty-two".