6436443441 has 16 divisors (see below), whose sum is σ = 9004544640. Its totient is φ = 4081714560.

The previous prime is 6436443407. The next prime is 6436443449. The reversal of 6436443441 is 1443446346.

It is not a de Polignac number, because 6436443441 - 2⁷ = 6436443313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6436443441.

It is not an unprimeable number, because it can be changed into a prime (6436443449) 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, 245196 + ... + 270173.

It is an arithmetic number, because the mean of its divisors is an integer number (562784040).

Almost surely, 2^6436443441 is an apocalyptic number.

It is an amenable number.

6436443441 is a deficient number, since it is larger than the sum of its proper divisors (2568101199).

6436443441 is a wasteful number, since it uses less digits than its factorization.

6436443441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515576.

The product of its digits is 331776, while the sum is 39.

The square root of 6436443441 is about 80227.4481770423. The cubic root of 6436443441 is about 1860.1529377655.

Adding to 6436443441 its reverse (1443446346), we get a palindrome (7879889787).

The spelling of 6436443441 in words is "six billion, four hundred thirty-six million, four hundred forty-three thousand, four hundred forty-one".