384685385 has 8 divisors (see below), whose sum is σ = 527568576. Its totient is φ = 263784240.

The previous prime is 384685349. The next prime is 384685387. The reversal of 384685385 is 583586483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 384685385 - 2⁶ = 384685321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384685387) by changing a digit.

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, 5495471 + ... + 5495540.

It is an arithmetic number, because the mean of its divisors is an integer number (65946072).

Almost surely, 2^384685385 is an apocalyptic number.

384685385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

384685385 is a deficient number, since it is larger than the sum of its proper divisors (142883191).

384685385 is a wasteful number, since it uses less digits than its factorization.

384685385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10991023.

The product of its digits is 2764800, while the sum is 50.

The square root of 384685385 is about 19613.3980992586. The cubic root of 384685385 is about 727.2804201057.

The spelling of 384685385 in words is "three hundred eighty-four million, six hundred eighty-five thousand, three hundred eighty-five".