6443223446 has 32 divisors (see below), whose sum is σ = 10746743040. Its totient is φ = 2872693600.

The previous prime is 6443223433. The next prime is 6443223469.

6443223446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6443223446² = 83030256750168229832, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 297245 + ... + 318183.

It is an arithmetic number, because the mean of its divisors is an integer number (335835720).

Almost surely, 2^6443223446 is an apocalyptic number.

6443223446 is a deficient number, since it is larger than the sum of its proper divisors (4303519594).

6443223446 is a wasteful number, since it uses less digits than its factorization.

6443223446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21220.

The product of its digits is 331776, while the sum is 38.

The square root of 6443223446 is about 80269.6919515704. The cubic root of 6443223446 is about 1860.8058563418.

It can be divided in two parts, 64432 and 23446, that added together give a palindrome (87878).

The spelling of 6443223446 in words is "six billion, four hundred forty-three million, two hundred twenty-three thousand, four hundred forty-six".