6442442446 has 24 divisors (see below), whose sum is σ = 10771678512. Its totient is φ = 2887130400.

The previous prime is 6442442429. The next prime is 6442442467.

It is a happy number.

6442442446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6442442399 and 6442442408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170295 + ... + 204658.

It is an arithmetic number, because the mean of its divisors is an integer number (448819938).

Almost surely, 2^6442442446 is an apocalyptic number.

6442442446 is a deficient number, since it is larger than the sum of its proper divisors (4329236066).

6442442446 is a wasteful number, since it uses less digits than its factorization.

6442442446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375048 (or 375037 counting only the distinct ones).

The product of its digits is 589824, while the sum is 40.

The square root of 6442442446 is about 80264.8269542768. The cubic root of 6442442446 is about 1860.7306689189.

The spelling of 6442442446 in words is "six billion, four hundred forty-two million, four hundred forty-two thousand, four hundred forty-six".