6338533728 has 48 divisors (see below), whose sum is σ = 16952601456. Its totient is φ = 2072977920.

The previous prime is 6338533709. The next prime is 6338533757. The reversal of 6338533728 is 8273358336.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 617803 + ... + 627978.

It is an arithmetic number, because the mean of its divisors is an integer number (353179197).

Almost surely, 2^6338533728 is an apocalyptic number.

It is an amenable number.

6338533728 is an abundant number, since it is smaller than the sum of its proper divisors (10614067728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6338533728 is a wasteful number, since it uses less digits than its factorization.

6338533728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245847 (or 1245839 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 48.

The square root of 6338533728 is about 79614.9089555468. The cubic root of 6338533728 is about 1850.6726288494.

The spelling of 6338533728 in words is "six billion, three hundred thirty-eight million, five hundred thirty-three thousand, seven hundred twenty-eight".