1440143152 has 80 divisors (see below), whose sum is σ = 3376172800. Its totient is φ = 581333760.

The previous prime is 1440143149. The next prime is 1440143179. The reversal of 1440143152 is 2513410441.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 383299 + ... + 387037.

It is an arithmetic number, because the mean of its divisors is an integer number (42202160).

Almost surely, 2^1440143152 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 1440143152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688086400).

1440143152 is an abundant number, since it is smaller than the sum of its proper divisors (1936029648).

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

1440143152 is a wasteful number, since it uses less digits than its factorization.

1440143152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3948 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1440143152 is about 37949.2180683608. The cubic root of 1440143152 is about 1129.2806531922.

Adding to 1440143152 its reverse (2513410441), we get a palindrome (3953553593).

The spelling of 1440143152 in words is "one billion, four hundred forty million, one hundred forty-three thousand, one hundred fifty-two".