4431222 has 24 divisors (see below), whose sum is σ = 9663264. Its totient is φ = 1467504.

The previous prime is 4431187. The next prime is 4431227. The reversal of 4431222 is 2221344.

4431222 is a `hidden beast` number, since 443 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4431195 and 4431204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431227) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2403 + ... + 3825.

It is an arithmetic number, because the mean of its divisors is an integer number (402636).

Almost surely, 2^4431222 is an apocalyptic number.

4431222 is an abundant number, since it is smaller than the sum of its proper divisors (5232042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4431222 is a wasteful number, since it uses less digits than its factorization.

4431222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1601 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 4431222 is about 2105.0467928291. The cubic root of 4431222 is about 164.2509295695.

Adding to 4431222 its reverse (2221344), we get a palindrome (6652566).

The spelling of 4431222 in words is "four million, four hundred thirty-one thousand, two hundred twenty-two".