1444153452 has 96 divisors (see below), whose sum is σ = 3995346432. Its totient is φ = 397426176.

The previous prime is 1444153439. The next prime is 1444153457. The reversal of 1444153452 is 2543514441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1444153457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260938 + ... + 266414.

It is an arithmetic number, because the mean of its divisors is an integer number (41618192).

Almost surely, 2^1444153452 is an apocalyptic number.

1444153452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444153452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997673216).

1444153452 is an abundant number, since it is smaller than the sum of its proper divisors (2551192980).

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

1444153452 is a wasteful number, since it uses less digits than its factorization.

1444153452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607 (or 5605 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 1444153452 is about 38002.0190516241. The cubic root of 1444153452 is about 1130.3279002472.

Adding to 1444153452 its reverse (2543514441), we get a palindrome (3987667893).

The spelling of 1444153452 in words is "one billion, four hundred forty-four million, one hundred fifty-three thousand, four hundred fifty-two".