4404435444 has 18 divisors (see below), whose sum is σ = 11133434130. Its totient is φ = 1468145136.

The previous prime is 4404435443. The next prime is 4404435457. The reversal of 4404435444 is 4445344044.

It can be written as a sum of positive squares in only one way, i.e., 3673814544 + 730620900 = 60612^2 + 27030^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 122345429 = 4404435444 / (4 + 4 + 0 + 4 + 4 + 3 + 5 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 4404435399 and 4404435408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404435443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61172679 + ... + 61172750.

Almost surely, 2^4404435444 is an apocalyptic number.

It is an amenable number.

4404435444 is an abundant number, since it is smaller than the sum of its proper divisors (6728998686).

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

4404435444 is a wasteful number, since it uses less digits than its factorization.

4404435444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122345439 (or 122345434 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 36.

The square root of 4404435444 is about 66365.9208027735. The cubic root of 4404435444 is about 1639.1929704722.

Adding to 4404435444 its reverse (4445344044), we get a palindrome (8849779488).

The spelling of 4404435444 in words is "four billion, four hundred four million, four hundred thirty-five thousand, four hundred forty-four".