385743765 has 48 divisors (see below), whose sum is σ = 683781696. Its totient is φ = 185681760.

The previous prime is 385743763. The next prime is 385743769. The reversal of 385743765 is 567347583.

It is not a de Polignac number, because 385743765 - 2¹ = 385743763 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385743763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2775066 + ... + 2775204.

It is an arithmetic number, because the mean of its divisors is an integer number (14245452).

Almost surely, 2^385743765 is an apocalyptic number.

It is an amenable number.

385743765 is a deficient number, since it is larger than the sum of its proper divisors (298037931).

385743765 is an equidigital number, since it uses as much as digits as its factorization.

385743765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 158 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 48.

The square root of 385743765 is about 19640.3606127790. The cubic root of 385743765 is about 727.9467951346.

The spelling of 385743765 in words is "three hundred eighty-five million, seven hundred forty-three thousand, seven hundred sixty-five".