6440044112 has 10 divisors (see below), whose sum is σ = 12477585498. Its totient is φ = 3220022048.

The previous prime is 6440044069. The next prime is 6440044141. The reversal of 6440044112 is 2114400446.

It can be written as a sum of positive squares in only one way, i.e., 5448801856 + 991242256 = 73816^2 + 31484^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201251363 + ... + 201251394.

Almost surely, 2^6440044112 is an apocalyptic number.

It is an amenable number.

6440044112 is a deficient number, since it is larger than the sum of its proper divisors (6037541386).

6440044112 is a wasteful number, since it uses less digits than its factorization.

6440044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402502765 (or 402502759 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 6440044112 is about 80249.8854329400. The cubic root of 6440044112 is about 1860.4997416191.

Adding to 6440044112 its reverse (2114400446), we get a palindrome (8554444558).

The spelling of 6440044112 in words is "six billion, four hundred forty million, forty-four thousand, one hundred twelve".