4431430240 has 96 divisors (see below), whose sum is σ = 10986446016. Its totient is φ = 1685882880.

The previous prime is 4431430219. The next prime is 4431430243. The reversal of 4431430240 is 420341344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431430243) 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, 662754 + ... + 669406.

It is an arithmetic number, because the mean of its divisors is an integer number (114442146).

Almost surely, 2^4431430240 is an apocalyptic number.

4431430240 is a gapful number since it is divisible by the number (40) 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 4431430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5493223008).

4431430240 is an abundant number, since it is smaller than the sum of its proper divisors (6555015776).

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

4431430240 is a wasteful number, since it uses less digits than its factorization.

4431430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6872 (or 6864 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4431430240 is about 66568.9885757625. The cubic root of 4431430240 is about 1642.5350245476.

Adding to 4431430240 its reverse (420341344), we get a palindrome (4851771584).

The spelling of 4431430240 in words is "four billion, four hundred thirty-one million, four hundred thirty thousand, two hundred forty".