4444937864 has 32 divisors (see below), whose sum is σ = 8898880320. Its totient is φ = 2076398016.

The previous prime is 4444937831. The next prime is 4444937867. The reversal of 4444937864 is 4687394444.

It is a happy number.

It is a super-2 number, since 2×4444937864² = 39514945229641764992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4444937867) 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 in 7 ways as a sum of consecutive naturals, for example, 272987 + ... + 288810.

It is an arithmetic number, because the mean of its divisors is an integer number (278090010).

Almost surely, 2^4444937864 is an apocalyptic number.

It is an amenable number.

4444937864 is an abundant number, since it is smaller than the sum of its proper divisors (4453942456).

4444937864 is a wasteful number, since it uses less digits than its factorization.

4444937864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561869 (or 561865 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 53.

The square root of 4444937864 is about 66670.3672106281. The cubic root of 4444937864 is about 1644.2022244988.

The spelling of 4444937864 in words is "four billion, four hundred forty-four million, nine hundred thirty-seven thousand, eight hundred sixty-four".