6820043328 has 84 divisors (see below), whose sum is σ = 22341067840. Its totient is φ = 1948582656.

The previous prime is 6820043311. The next prime is 6820043333. The reversal of 6820043328 is 8233400286.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6820043292 and 6820043301.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 841708 + ... + 849771.

Almost surely, 2^6820043328 is an apocalyptic number.

It is an amenable number.

6820043328 is an abundant number, since it is smaller than the sum of its proper divisors (15521024512).

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

6820043328 is a wasteful number, since it uses less digits than its factorization.

6820043328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691504 (or 1691491 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 6820043328 is about 82583.5536169279. The cubic root of 6820043328 is about 1896.3960610403.

The spelling of 6820043328 in words is "six billion, eight hundred twenty million, forty-three thousand, three hundred twenty-eight".