4221344403 has 10 divisors (see below), whose sum is σ = 6305959044. Its totient is φ = 2814229548.

The previous prime is 4221344401. The next prime is 4221344453. The reversal of 4221344403 is 3044431224.

It is a happy number.

4221344403 is a `hidden beast` number, since 4 + 2 + 213 + 4 + 440 + 3 = 666.

It is not a de Polignac number, because 4221344403 - 2¹ = 4221344401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4221344401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26057601 + ... + 26057762.

Almost surely, 2^4221344403 is an apocalyptic number.

4221344403 is a deficient number, since it is larger than the sum of its proper divisors (2084614641).

4221344403 is an equidigital number, since it uses as much as digits as its factorization.

4221344403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52115375 (or 52115366 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 4221344403 is about 64971.8739378818. The cubic root of 4221344403 is about 1616.1571776086.

Adding to 4221344403 its reverse (3044431224), we get a palindrome (7265775627).

The spelling of 4221344403 in words is "four billion, two hundred twenty-one million, three hundred forty-four thousand, four hundred three".