6396838438 has 8 divisors (see below), whose sum is σ = 10159684632. Its totient is φ = 3010276896.

The previous prime is 6396838411. The next prime is 6396838447. The reversal of 6396838438 is 8348386936.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94071120 + ... + 94071187.

It is an arithmetic number, because the mean of its divisors is an integer number (1269960579).

Almost surely, 2^6396838438 is an apocalyptic number.

6396838438 is a deficient number, since it is larger than the sum of its proper divisors (3762846194).

6396838438 is a wasteful number, since it uses less digits than its factorization.

6396838438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188142326.

The product of its digits is 17915904, while the sum is 58.

The square root of 6396838438 is about 79980.2377965957. The cubic root of 6396838438 is about 1856.3297607797.

The spelling of 6396838438 in words is "six billion, three hundred ninety-six million, eight hundred thirty-eight thousand, four hundred thirty-eight".