6336398405 has 4 divisors (see below), whose sum is σ = 7603678092. Its totient is φ = 5069118720.

The previous prime is 6336398399. The next prime is 6336398443. The reversal of 6336398405 is 5048936336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4900140001 + 1436258404 = 70001^2 + 37898^2 .

It is not a de Polignac number, because 6336398405 - 2⁸ = 6336398149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6336398405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633639836 + ... + 633639845.

It is an arithmetic number, because the mean of its divisors is an integer number (1900919523).

Almost surely, 2^6336398405 is an apocalyptic number.

It is an amenable number.

6336398405 is a deficient number, since it is larger than the sum of its proper divisors (1267279687).

6336398405 is a wasteful number, since it uses less digits than its factorization.

6336398405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267279686.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The square root of 6336398405 is about 79601.4975047580. The cubic root of 6336398405 is about 1850.4647875283.

The spelling of 6336398405 in words is "six billion, three hundred thirty-six million, three hundred ninety-eight thousand, four hundred five".