385003885 has 8 divisors (see below), whose sum is σ = 528005376. Its totient is φ = 264002640.

The previous prime is 385003873. The next prime is 385003901. The reversal of 385003885 is 588300583.

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

It is not a de Polignac number, because 385003885 - 2¹⁹ = 384479597 is a prime.

It is a Duffinian number.

385003885 is a modest number, since divided by 3885 gives 385 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 5500021 + ... + 5500090.

It is an arithmetic number, because the mean of its divisors is an integer number (66000672).

Almost surely, 2^385003885 is an apocalyptic number.

385003885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

385003885 is a deficient number, since it is larger than the sum of its proper divisors (143001491).

385003885 is a wasteful number, since it uses less digits than its factorization.

385003885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000123.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 385003885 is about 19621.5158690658. The cubic root of 385003885 is about 727.4810818445.

The spelling of 385003885 in words is "three hundred eighty-five million, three thousand, eight hundred eighty-five".