4244889856 has 18 divisors (see below), whose sum is σ = 8473198622. Its totient is φ = 2122444800.

The previous prime is 4244889853. The next prime is 4244889863. The reversal of 4244889856 is 6589884424.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4137062400 + 107827456 = 64320^2 + 10384^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4244889856.

It is not an unprimeable number, because it can be changed into a prime (4244889853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8290545 + ... + 8291056.

Almost surely, 2^4244889856 is an apocalyptic number.

It is an amenable number.

4244889856 is a deficient number, since it is larger than the sum of its proper divisors (4228308766).

4244889856 is an equidigital number, since it uses as much as digits as its factorization.

4244889856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16581617 (or 16581603 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 58.

The square root of 4244889856 is about 65152.8192482873. The cubic root of 4244889856 is about 1619.1564291733.

The spelling of 4244889856 in words is "four billion, two hundred forty-four million, eight hundred eighty-nine thousand, eight hundred fifty-six".