4431144312 has 64 divisors (see below), whose sum is σ = 14067129600. Its totient is φ = 1266040800.

The previous prime is 4431144301. The next prime is 4431144313. The reversal of 4431144312 is 2134411344.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431144313) 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, 1463814 + ... + 1466837.

It is an arithmetic number, because the mean of its divisors is an integer number (219798900).

Almost surely, 2^4431144312 is an apocalyptic number.

4431144312 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4431144312 is an abundant number, since it is smaller than the sum of its proper divisors (9635985288).

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

4431144312 is a wasteful number, since it uses less digits than its factorization.

4431144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930673 (or 2930663 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 4431144312 is about 66566.8409345073. The cubic root of 4431144312 is about 1642.4996968370.

Adding to 4431144312 its reverse (2134411344), we get a palindrome (6565555656).

The spelling of 4431144312 in words is "four billion, four hundred thirty-one million, one hundred forty-four thousand, three hundred twelve".