384713820 has 48 divisors (see below), whose sum is σ = 1196889120. Its totient is φ = 102590208.

The previous prime is 384713779. The next prime is 384713831. The reversal of 384713820 is 28317483.

384713820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355677 + ... + 356756.

It is an arithmetic number, because the mean of its divisors is an integer number (24935190).

Almost surely, 2^384713820 is an apocalyptic number.

384713820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384713820 is an abundant number, since it is smaller than the sum of its proper divisors (812175300).

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

384713820 is a wasteful number, since it uses less digits than its factorization.

384713820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712451 (or 712443 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 384713820 is about 19614.1229730009. The cubic root of 384713820 is about 727.2983392590.

The spelling of 384713820 in words is "three hundred eighty-four million, seven hundred thirteen thousand, eight hundred twenty".