4044444440 has 16 divisors (see below), whose sum is σ = 9100000080. Its totient is φ = 1617777760.

The previous prime is 4044444431. The next prime is 4044444451. The reversal of 4044444440 is 444444404.

It is a junction number, because it is equal to n+sod(n) for n = 4044444397 and 4044444406.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 50555516 + ... + 50555595.

It is an arithmetic number, because the mean of its divisors is an integer number (568750005).

Almost surely, 2^4044444440 is an apocalyptic number.

4044444440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044444440 is an abundant number, since it is smaller than the sum of its proper divisors (5055555640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4044444440 is a wasteful number, since it uses less digits than its factorization.

4044444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101111122 (or 101111118 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

The square root of 4044444440 is about 63595.9467261869. The cubic root of 4044444440 is about 1593.2586729176.

Adding to 4044444440 its reverse (444444404), we get a palindrome (4488888844).

The spelling of 4044444440 in words is "four billion, forty-four million, four hundred forty-four thousand, four hundred forty".