6445335446 has 32 divisors (see below), whose sum is σ = 10827831168. Its totient is φ = 2852115840.

The previous prime is 6445335437. The next prime is 6445335451.

6445335446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6445335446² = 83084698022928037832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6445335397 and 6445335406.

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, 279326 + ... + 301518.

It is an arithmetic number, because the mean of its divisors is an integer number (338369724).

Almost surely, 2^6445335446 is an apocalyptic number.

6445335446 is a deficient number, since it is larger than the sum of its proper divisors (4382495722).

6445335446 is a wasteful number, since it uses less digits than its factorization.

6445335446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22556.

The product of its digits is 2073600, while the sum is 44.

The square root of 6445335446 is about 80282.8465240240. The cubic root of 6445335446 is about 1861.0091496507.

It can be divided in two parts, 64453 and 35446, that added together give a palindrome (99899).

The spelling of 6445335446 in words is "six billion, four hundred forty-five million, three hundred thirty-five thousand, four hundred forty-six".