6344440366 has 64 divisors (see below), whose sum is σ = 11289818880. Its totient is φ = 2643114240.

The previous prime is 6344440351. The next prime is 6344440367. The reversal of 6344440366 is 6630444436.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6344440367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1615281 + ... + 1619203.

It is an arithmetic number, because the mean of its divisors is an integer number (176403420).

Almost surely, 2^6344440366 is an apocalyptic number.

6344440366 is a deficient number, since it is larger than the sum of its proper divisors (4945378514).

6344440366 is a wasteful number, since it uses less digits than its factorization.

6344440366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081.

The product of its (nonzero) digits is 497664, while the sum is 40.

The square root of 6344440366 is about 79651.9953673478. The cubic root of 6344440366 is about 1851.2473074753.

The spelling of 6344440366 in words is "six billion, three hundred forty-four million, four hundred forty thousand, three hundred sixty-six".