385316785 has 16 divisors (see below), whose sum is σ = 529168896. Its totient is φ = 263850048.

The previous prime is 385316783. The next prime is 385316791. The reversal of 385316785 is 587613583.

It is not a de Polignac number, because 385316785 - 2¹ = 385316783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385316783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19224 + ... + 33766.

It is an arithmetic number, because the mean of its divisors is an integer number (33073056).

Almost surely, 2^385316785 is an apocalyptic number.

385316785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

385316785 is a deficient number, since it is larger than the sum of its proper divisors (143852111).

385316785 is a wasteful number, since it uses less digits than its factorization.

385316785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15312.

The product of its digits is 604800, while the sum is 46.

The square root of 385316785 is about 19629.4876397730. The cubic root of 385316785 is about 727.6781077284.

The spelling of 385316785 in words is "three hundred eighty-five million, three hundred sixteen thousand, seven hundred eighty-five".