4431321412 has 48 divisors (see below), whose sum is σ = 9156833280. Its totient is φ = 1836208800.

The previous prime is 4431321407. The next prime is 4431321449. The reversal of 4431321412 is 2141231344.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570539 + ... + 1573357.

It is an arithmetic number, because the mean of its divisors is an integer number (190767360).

Almost surely, 2^4431321412 is an apocalyptic number.

It is an amenable number.

4431321412 is an abundant number, since it is smaller than the sum of its proper divisors (4725511868).

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

4431321412 is a wasteful number, since it uses less digits than its factorization.

4431321412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672 (or 4670 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 4431321412 is about 66568.1711631017. The cubic root of 4431321412 is about 1642.5215785302.

Adding to 4431321412 its reverse (2141231344), we get a palindrome (6572552756).

The spelling of 4431321412 in words is "four billion, four hundred thirty-one million, three hundred twenty-one thousand, four hundred twelve".