6442992446 has 32 divisors (see below), whose sum is σ = 10895302656. Its totient is φ = 2831004000.

The previous prime is 6442992403. The next prime is 6442992527.

6442992446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6442992394 and 6442992403.

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 15 ways as a sum of consecutive naturals, for example, 671096 + ... + 680628.

It is an arithmetic number, because the mean of its divisors is an integer number (340478208).

Almost surely, 2^6442992446 is an apocalyptic number.

6442992446 is a deficient number, since it is larger than the sum of its proper divisors (4452310210).

6442992446 is a wasteful number, since it uses less digits than its factorization.

6442992446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10568.

The product of its digits is 2985984, while the sum is 50.

The square root of 6442992446 is about 80268.2530394178. The cubic root of 6442992446 is about 1860.7836184410.

The spelling of 6442992446 in words is "six billion, four hundred forty-two million, nine hundred ninety-two thousand, four hundred forty-six".