4440020444 has 12 divisors (see below), whose sum is σ = 7771024464. Its totient is φ = 2219727744.

The previous prime is 4440020443. The next prime is 4440020447. The reversal of 4440020444 is 4440200444.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440020443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33032 + ... + 99855.

It is an arithmetic number, because the mean of its divisors is an integer number (647585372).

Almost surely, 2^4440020444 is an apocalyptic number.

It is an amenable number.

4440020444 is a deficient number, since it is larger than the sum of its proper divisors (3331004020).

4440020444 is a wasteful number, since it uses less digits than its factorization.

4440020444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141244 (or 141242 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4440020444 is about 66633.4784023767. The cubic root of 4440020444 is about 1643.5956756156.

Adding to 4440020444 its reverse (4440200444), we get a palindrome (8880220888).

The spelling of 4440020444 in words is "four billion, four hundred forty million, twenty thousand, four hundred forty-four".