1443889152 has 210 divisors, whose sum is σ = 4567594878. Its totient is φ = 452984832.

The previous prime is 1443889133. The next prime is 1443889189. The reversal of 1443889152 is 2519883441.

It can be written as a sum of positive squares in only one way, i.e., 1358954496 + 84934656 = 36864^2 + 9216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1443889098 and 1443889107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 84934648 + ... + 84934664.

Almost surely, 2^1443889152 is an apocalyptic number.

1443889152 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 1443889152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283797439).

1443889152 is an abundant number, since it is smaller than the sum of its proper divisors (3123705726).

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

1443889152 is an frugal number, since it uses more digits than its factorization.

1443889152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 22 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 1443889152 is about 37998.5414456924. The cubic root of 1443889152 is about 1130.2589408416.

The spelling of 1443889152 in words is "one billion, four hundred forty-three million, eight hundred eighty-nine thousand, one hundred fifty-two".