4012440330432 has 112 divisors (see below), whose sum is σ = 10866824811392. Its totient is φ = 1305932544000.

The previous prime is 4012440330419. The next prime is 4012440330439. The reversal of 4012440330432 is 2340330442104.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4012440330432.

It is not an unprimeable number, because it can be changed into a prime (4012440330439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24695283 + ... + 24857229.

Almost surely, 2^{4012440330432} 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 4012440330432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5433412405696).

4012440330432 is an abundant number, since it is smaller than the sum of its proper divisors (6854384480960).

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

4012440330432 is a wasteful number, since it uses less digits than its factorization.

4012440330432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165006 (or 164996 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 4012440330432 its reverse (2340330442104), we get a palindrome (6352770772536).

The spelling of 4012440330432 in words is "four trillion, twelve billion, four hundred forty million, three hundred thirty thousand, four hundred thirty-two".