384800400828 has 36 divisors (see below), whose sum is σ = 989176177080. Its totient is φ = 126092786016.

The previous prime is 384800400827. The next prime is 384800400841. The reversal of 384800400828 is 828004008483.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384800400823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90581775 + ... + 90586022.

It is an arithmetic number, because the mean of its divisors is an integer number (27477116030).

Almost surely, 2^384800400828 is an apocalyptic number.

It is an amenable number.

384800400828 is an abundant number, since it is smaller than the sum of its proper divisors (604375776252).

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

384800400828 is a wasteful number, since it uses less digits than its factorization.

384800400828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181167866 (or 181167861 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The spelling of 384800400828 in words is "three hundred eighty-four billion, eight hundred million, four hundred thousand, eight hundred twenty-eight".