4491222 has 16 divisors (see below), whose sum is σ = 9202032. Its totient is φ = 1460480.

The previous prime is 4491217. The next prime is 4491241. The reversal of 4491222 is 2221944.

It is a junction number, because it is equal to n+sod(n) for n = 4491192 and 4491201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (575127).

Almost surely, 2^4491222 is an apocalyptic number.

4491222 is an abundant number, since it is smaller than the sum of its proper divisors (4710810).

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

4491222 is a wasteful number, since it uses less digits than its factorization.

4491222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18303.

The product of its digits is 1152, while the sum is 24.

The square root of 4491222 is about 2119.2503391530. The cubic root of 4491222 is about 164.9889432444.

The spelling of 4491222 in words is "four million, four hundred ninety-one thousand, two hundred twenty-two".