6422224 has 20 divisors (see below), whose sum is σ = 12873060. Its totient is φ = 3100160.

The previous prime is 6422203. The next prime is 6422261. The reversal of 6422224 is 4222246.

6422224 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2689600 + 3732624 = 1640^2 + 1932^2 .

It is a super-2 number, since 2×6422224² = 82489922212352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6422195 and 6422204.

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, 6457 + ... + 7384.

It is an arithmetic number, because the mean of its divisors is an integer number (643653).

Almost surely, 2^6422224 is an apocalyptic number.

It is an amenable number.

6422224 is an abundant number, since it is smaller than the sum of its proper divisors (6450836).

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

6422224 is a wasteful number, since it uses less digits than its factorization.

6422224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13878 (or 13872 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 6422224 is about 2534.2107252555. The cubic root of 6422224 is about 185.8782106331.

Adding to 6422224 its sum of digits (22), we get a palindrome (6422246).

It can be divided in two parts, 64222 and 24, that added together give a palindrome (64246).

The spelling of 6422224 in words is "six million, four hundred twenty-two thousand, two hundred twenty-four".