4043430040 has 32 divisors (see below), whose sum is σ = 9797543280. Its totient is φ = 1492958592.

The previous prime is 4043430019. The next prime is 4043430047. The reversal of 4043430040 is 400343404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4043429993 and 4043430020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043430047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3887394 + ... + 3888433.

Almost surely, 2^4043430040 is an apocalyptic number.

4043430040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4043430040 is an abundant number, since it is smaller than the sum of its proper divisors (5754113240).

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

4043430040 is a wasteful number, since it uses less digits than its factorization.

4043430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775851 (or 7775847 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 4043430040 is about 63587.9708750012. The cubic root of 4043430040 is about 1593.1254583511.

Adding to 4043430040 its reverse (400343404), we get a palindrome (4443773444).

The spelling of 4043430040 in words is "four billion, forty-three million, four hundred thirty thousand, forty".