4451442044 has 72 divisors (see below), whose sum is σ = 9818368560. Its totient is φ = 1753726464.

The previous prime is 4451442031. The next prime is 4451442049. The reversal of 4451442044 is 4402441544.

It is a self number, because there is not a number n which added to its sum of digits gives 4451442044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451442049) 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 23 ways as a sum of consecutive naturals, for example, 127742 + ... + 158810.

It is an arithmetic number, because the mean of its divisors is an integer number (136366230).

Almost surely, 2^4451442044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4451442044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4909184280).

4451442044 is an abundant number, since it is smaller than the sum of its proper divisors (5366926516).

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

4451442044 is a wasteful number, since it uses less digits than its factorization.

4451442044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31147 (or 31138 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

The square root of 4451442044 is about 66719.1280218799. The cubic root of 4451442044 is about 1645.0038086527.

Adding to 4451442044 its reverse (4402441544), we get a palindrome (8853883588).

The spelling of 4451442044 in words is "four billion, four hundred fifty-one million, four hundred forty-two thousand, forty-four".