6436442012 has 96 divisors (see below), whose sum is σ = 16013168640. Its totient is φ = 2178616320.

The previous prime is 6436441987. The next prime is 6436442017. The reversal of 6436442012 is 2102446346.

It is a self number, because there is not a number n which added to its sum of digits gives 6436442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6436442017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20789 + ... + 115347.

It is an arithmetic number, because the mean of its divisors is an integer number (166803840).

Almost surely, 2^6436442012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6436442012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8006584320).

6436442012 is an abundant number, since it is smaller than the sum of its proper divisors (9576726628).

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

6436442012 is a wasteful number, since it uses less digits than its factorization.

6436442012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94611 (or 94609 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 6436442012 is about 80227.4392711122. The cubic root of 6436442012 is about 1860.1528001036.

Adding to 6436442012 its reverse (2102446346), we get a palindrome (8538888358).

The spelling of 6436442012 in words is "six billion, four hundred thirty-six million, four hundred forty-two thousand, twelve".