6444130401 has 6 divisors (see below), whose sum is σ = 9308188370. Its totient is φ = 4296086928.

The previous prime is 6444130349. The next prime is 6444130403. The reversal of 6444130401 is 1040314446.

6444130401 is a `hidden beast` number, since 644 + 4 + 13 + 0 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5288198400 + 1155932001 = 72720^2 + 33999^2 .

It is not a de Polignac number, because 6444130401 - 2⁶ = 6444130337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6444130403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358007236 + ... + 358007253.

Almost surely, 2^6444130401 is an apocalyptic number.

It is an amenable number.

6444130401 is a deficient number, since it is larger than the sum of its proper divisors (2864057969).

6444130401 is a wasteful number, since it uses less digits than its factorization.

6444130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716014495 (or 716014492 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6444130401 is about 80275.3411764783. The cubic root of 6444130401 is about 1860.8931619174.

Adding to 6444130401 its reverse (1040314446), we get a palindrome (7484444847).

The spelling of 6444130401 in words is "six billion, four hundred forty-four million, one hundred thirty thousand, four hundred one".