3231444440 has 128 divisors (see below), whose sum is σ = 8458905600. Its totient is φ = 1088156160.

The previous prime is 3231444401. The next prime is 3231444449. The reversal of 3231444440 is 444441323.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231444449) by changing a digit.

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, 7675430 + ... + 7675850.

It is an arithmetic number, because the mean of its divisors is an integer number (66085200).

Almost surely, 2^3231444440 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 3231444440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4229452800).

3231444440 is an abundant number, since it is smaller than the sum of its proper divisors (5227461160).

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

3231444440 is a wasteful number, since it uses less digits than its factorization.

3231444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 3231444440 is about 56845.7952710664. The cubic root of 3231444440 is about 1478.4236381311.

Adding to 3231444440 its reverse (444441323), we get a palindrome (3675885763).

The spelling of 3231444440 in words is "three billion, two hundred thirty-one million, four hundred forty-four thousand, four hundred forty".