385000170 has 64 divisors (see below), whose sum is σ = 955673856. Its totient is φ = 99187200.

The previous prime is 385000163. The next prime is 385000229. The reversal of 385000170 is 71000583.

It is a self number, because there is not a number n which added to its sum of digits gives 385000170.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166462 + ... + 168758.

It is an arithmetic number, because the mean of its divisors is an integer number (14932404).

Almost surely, 2^385000170 is an apocalyptic number.

385000170 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 385000170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477836928).

385000170 is an abundant number, since it is smaller than the sum of its proper divisors (570673686).

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

385000170 is a wasteful number, since it uses less digits than its factorization.

385000170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 385000170 is about 19621.4212023492. The cubic root of 385000170 is about 727.4787419539.

The spelling of 385000170 in words is "three hundred eighty-five million, one hundred seventy", and thus it is an aban number.