385071930 has 96 divisors (see below), whose sum is σ = 1070269200. Its totient is φ = 95717376.

The previous prime is 385071919. The next prime is 385071931. The reversal of 385071930 is 39170583.

385071930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 319801689 + 65270241 = 17883^2 + 8079^2 .

It is not an unprimeable number, because it can be changed into a prime (385071931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165616 + ... + 167924.

Almost surely, 2^385071930 is an apocalyptic number.

385071930 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 385071930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535134600).

385071930 is an abundant number, since it is smaller than the sum of its proper divisors (685197270).

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

385071930 is a wasteful number, since it uses less digits than its factorization.

385071930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 385071930 is about 19623.2497308677. The cubic root of 385071930 is about 727.5239372858.

The spelling of 385071930 in words is "three hundred eighty-five million, seventy-one thousand, nine hundred thirty".