6428802020 has 24 divisors (see below), whose sum is σ = 13503356664. Its totient is φ = 2570973696.

The previous prime is 6428802011. The next prime is 6428802031. The reversal of 6428802020 is 202088246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3506534656 + 2922267364 = 59216^2 + 54058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69884 + ... + 133196.

It is an arithmetic number, because the mean of its divisors is an integer number (562639861).

Almost surely, 2^6428802020 is an apocalyptic number.

It is an amenable number.

6428802020 is an abundant number, since it is smaller than the sum of its proper divisors (7074554644).

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

6428802020 is a wasteful number, since it uses less digits than its factorization.

6428802020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68399 (or 68397 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 6428802020 is about 80179.8105510359. The cubic root of 6428802020 is about 1859.4165144774.

The spelling of 6428802020 in words is "six billion, four hundred twenty-eight million, eight hundred two thousand, twenty".