4000444444 has 12 divisors (see below), whose sum is σ = 7005256384. Its totient is φ = 1998942624.

The previous prime is 4000444421. The next prime is 4000444447. The reversal of 4000444444 is 4444440004.

4000444444 is a modest number, since divided by 44444 gives 40004 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000444447) 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 3 ways as a sum of consecutive naturals, for example, 312849 + ... + 325384.

Almost surely, 2^4000444444 is an apocalyptic number.

It is an amenable number.

4000444444 is a deficient number, since it is larger than the sum of its proper divisors (3004811940).

4000444444 is a wasteful number, since it uses less digits than its factorization.

4000444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639804 (or 639802 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 4000444444 is about 63249.0667441030. The cubic root of 4000444444 is about 1587.4598423636.

Adding to 4000444444 its reverse (4444440004), we get a palindrome (8444884448).

It can be divided in two parts, 40004 and 44444, that added together give a palindrome (84448).

The spelling of 4000444444 in words is "four billion, four hundred forty-four thousand, four hundred forty-four".