4444388889 has 32 divisors (see below), whose sum is σ = 6140080128. Its totient is φ = 2857680000.

The previous prime is 4444388887. The next prime is 4444388891. The reversal of 4444388889 is 9888834444.

It is an interprime number because it is at equal distance from previous prime (4444388887) and next prime (4444388891).

It is not a de Polignac number, because 4444388889 - 2¹ = 4444388887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4444388887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5032842 + ... + 5033724.

It is an arithmetic number, because the mean of its divisors is an integer number (191877504).

Almost surely, 2^4444388889 is an apocalyptic number.

It is an amenable number.

4444388889 is a deficient number, since it is larger than the sum of its proper divisors (1695691239).

4444388889 is a wasteful number, since it uses less digits than its factorization.

4444388889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its digits is 28311552, while the sum is 60.

The square root of 4444388889 is about 66666.2499995312. The cubic root of 4444388889 is about 1644.1345322830.

The spelling of 4444388889 in words is "four billion, four hundred forty-four million, three hundred eighty-eight thousand, eight hundred eighty-nine".