6386840339 has 8 divisors (see below), whose sum is σ = 7045749360. Its totient is φ = 5740979200.

The previous prime is 6386840333. The next prime is 6386840357. The reversal of 6386840339 is 9330486836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6386840339 - 2¹² = 6386836243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6386840333) 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, 3260942 + ... + 3262899.

It is an arithmetic number, because the mean of its divisors is an integer number (880718670).

Almost surely, 2^6386840339 is an apocalyptic number.

6386840339 is a deficient number, since it is larger than the sum of its proper divisors (658909021).

6386840339 is a wasteful number, since it uses less digits than its factorization.

6386840339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523941.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The square root of 6386840339 is about 79917.7097957643. The cubic root of 6386840339 is about 1855.3621240951.

The spelling of 6386840339 in words is "six billion, three hundred eighty-six million, eight hundred forty thousand, three hundred thirty-nine".