4449449444 has 24 divisors (see below), whose sum is σ = 8503547808. Its totient is φ = 2020299840.

The previous prime is 4449449419. The next prime is 4449449449.

4449449444 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4449449392 and 4449449401.

It is not an unprimeable number, because it can be changed into a prime (4449449449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12734 + ... + 95189.

It is an arithmetic number, because the mean of its divisors is an integer number (354314492).

Almost surely, 2^4449449444 is an apocalyptic number.

4449449444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4449449444 is a deficient number, since it is larger than the sum of its proper divisors (4054098364).

4449449444 is a wasteful number, since it uses less digits than its factorization.

4449449444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108875 (or 108873 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 50.

The square root of 4449449444 is about 66704.1936013022. The cubic root of 4449449444 is about 1644.7583208786.

The spelling of 4449449444 in words is "four billion, four hundred forty-nine million, four hundred forty-nine thousand, four hundred forty-four".