6449033320 has 16 divisors (see below), whose sum is σ = 14510325060. Its totient is φ = 2579613312.

The previous prime is 6449033303. The next prime is 6449033389. The reversal of 6449033320 is 233309446.

It can be written as a sum of positive squares in 2 ways, for example, as 5790905604 + 658127716 = 76098^2 + 25654^2 .

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 3 ways as a sum of consecutive naturals, for example, 80612877 + ... + 80612956.

Almost surely, 2^6449033320 is an apocalyptic number.

It is an amenable number.

6449033320 is an abundant number, since it is smaller than the sum of its proper divisors (8061291740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6449033320 is a wasteful number, since it uses less digits than its factorization.

6449033320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161225844 (or 161225840 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 6449033320 is about 80305.8735087291. The cubic root of 6449033320 is about 1861.3649864019.

The spelling of 6449033320 in words is "six billion, four hundred forty-nine million, thirty-three thousand, three hundred twenty".