6434044340 has 24 divisors (see below), whose sum is σ = 13513017672. Its totient is φ = 2573327360.

The previous prime is 6434044301. The next prime is 6434044343. The reversal of 6434044340 is 434404346.

It can be written as a sum of positive squares in 4 ways, for example, as 3432319396 + 3001724944 = 58586^2 + 54788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6434044297 and 6434044306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434044343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297080 + ... + 318000.

It is an arithmetic number, because the mean of its divisors is an integer number (563042403).

Almost surely, 2^6434044340 is an apocalyptic number.

It is an amenable number.

6434044340 is an abundant number, since it is smaller than the sum of its proper divisors (7078973332).

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

6434044340 is a wasteful number, since it uses less digits than its factorization.

6434044340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36307 (or 36305 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

The square root of 6434044340 is about 80212.4949119525. The cubic root of 6434044340 is about 1859.9217930658.

Adding to 6434044340 its reverse (434404346), we get a palindrome (6868448686).

The spelling of 6434044340 in words is "six billion, four hundred thirty-four million, forty-four thousand, three hundred forty".