6403222 has 24 divisors (see below), whose sum is σ = 11261376. Its totient is φ = 2722608.

The previous prime is 6403219. The next prime is 6403273. The reversal of 6403222 is 2223046.

It is a self number, because there is not a number n which added to its sum of digits gives 6403222.

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 11 ways as a sum of consecutive naturals, for example, 21708 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (469224).

Almost surely, 2^6403222 is an apocalyptic number.

6403222 is a deficient number, since it is larger than the sum of its proper divisors (4858154).

6403222 is a wasteful number, since it uses less digits than its factorization.

6403222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 6403222 is about 2530.4588516710. The cubic root of 6403222 is about 185.6947047825.

Adding to 6403222 its reverse (2223046), we get a palindrome (8626268).

The spelling of 6403222 in words is "six million, four hundred three thousand, two hundred twenty-two".