6449559446 has 32 divisors (see below), whose sum is σ = 10683878400. Its totient is φ = 2895641280.

The previous prime is 6449559439. The next prime is 6449559449.

6449559446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6449559391 and 6449559400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449559449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923315 + ... + 930273.

It is an arithmetic number, because the mean of its divisors is an integer number (333871200).

Almost surely, 2^6449559446 is an apocalyptic number.

6449559446 is a deficient number, since it is larger than the sum of its proper divisors (4234318954).

6449559446 is a wasteful number, since it uses less digits than its factorization.

6449559446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484.

The product of its digits is 18662400, while the sum is 56.

The square root of 6449559446 is about 80309.1492048073. The cubic root of 6449559446 is about 1861.4156030776.

The spelling of 6449559446 in words is "six billion, four hundred forty-nine million, five hundred fifty-nine thousand, four hundred forty-six".