4451444452 has 144 divisors (see below), whose sum is σ = 9999424512. Its totient is φ = 1696705920.

The previous prime is 4451444429. The next prime is 4451444453. The reversal of 4451444452 is 2544441544.

It is not an unprimeable number, because it can be changed into a prime (4451444453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26655273 + ... + 26655439.

It is an arithmetic number, because the mean of its divisors is an integer number (69440448).

Almost surely, 2^4451444452 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 4451444452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4999712256).

4451444452 is an abundant number, since it is smaller than the sum of its proper divisors (5547980060).

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

4451444452 is a wasteful number, since it uses less digits than its factorization.

4451444452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 363 counting only the distinct ones).

The product of its digits is 204800, while the sum is 37.

The square root of 4451444452 is about 66719.1460676769. The cubic root of 4451444452 is about 1645.0041052733.

Adding to 4451444452 its reverse (2544441544), we get a palindrome (6995885996).

The spelling of 4451444452 in words is "four billion, four hundred fifty-one million, four hundred forty-four thousand, four hundred fifty-two".