6396838432 has 24 divisors (see below), whose sum is σ = 12603937500. Its totient is φ = 3195838464.

The previous prime is 6396838411. The next prime is 6396838447. The reversal of 6396838432 is 2348386936.

It can be written as a sum of positive squares in 2 ways, for example, as 5726856976 + 669981456 = 75676^2 + 25884^2 .

It is a super-2 number, since 2×6396838432² = 81839083850224437248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6396838432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40057 + ... + 119992.

Almost surely, 2^6396838432 is an apocalyptic number.

It is an amenable number.

6396838432 is a deficient number, since it is larger than the sum of its proper divisors (6207099068).

6396838432 is a wasteful number, since it uses less digits than its factorization.

6396838432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161308 (or 161300 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 52.

The square root of 6396838432 is about 79980.2377590865. The cubic root of 6396838432 is about 1856.3297601993.

It can be divided in two parts, 63968 and 38432, that added together give a square (102400 = 320²).

The spelling of 6396838432 in words is "six billion, three hundred ninety-six million, eight hundred thirty-eight thousand, four hundred thirty-two".