12002438532 has 96 divisors (see below), whose sum is σ = 33912926208. Its totient is φ = 3225291264.

The previous prime is 12002438501. The next prime is 12002438573. The reversal of 12002438532 is 23583420021.

12002438532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12002438532.

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 31 ways as a sum of consecutive naturals, for example, 3521173 + ... + 3524579.

It is an arithmetic number, because the mean of its divisors is an integer number (353259648).

Almost surely, 2^12002438532 is an apocalyptic number.

12002438532 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 12002438532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16956463104).

12002438532 is an abundant number, since it is smaller than the sum of its proper divisors (21910487676).

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

12002438532 is a wasteful number, since it uses less digits than its factorization.

12002438532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905 (or 5903 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12002438532 its reverse (23583420021), we get a palindrome (35585858553).

The spelling of 12002438532 in words is "twelve billion, two million, four hundred thirty-eight thousand, five hundred thirty-two".