4000222 has 8 divisors (see below), whose sum is σ = 6316200. Its totient is φ = 1894824.

The previous prime is 4000189. The next prime is 4000237. The reversal of 4000222 is 2220004.

It is a happy number.

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

4000222 is a modest number, since divided by 222 gives 4 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4000199 and 4000208.

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 in 3 ways as a sum of consecutive naturals, for example, 52597 + ... + 52672.

It is an arithmetic number, because the mean of its divisors is an integer number (789525).

Almost surely, 2^4000222 is an apocalyptic number.

4000222 is a deficient number, since it is larger than the sum of its proper divisors (2315978).

4000222 is a wasteful number, since it uses less digits than its factorization.

4000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105290.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4000222 is about 2000.0554992300. The cubic root of 4000222 is about 158.7430418344.

Adding to 4000222 its reverse (2220004), we get a palindrome (6220226).

The spelling of 4000222 in words is "four million, two hundred twenty-two", and thus it is an aban number.