385845565 has 16 divisors (see below), whose sum is σ = 539146368. Its totient is φ = 259586496.

The previous prime is 385845541. The next prime is 385845569. The reversal of 385845565 is 565548583.

It is a cyclic number.

It is not a de Polignac number, because 385845565 - 2¹¹ = 385843517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385845569) 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 15 ways as a sum of consecutive naturals, for example, 102147 + ... + 105856.

It is an arithmetic number, because the mean of its divisors is an integer number (33696648).

Almost surely, 2^385845565 is an apocalyptic number.

385845565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

385845565 is a deficient number, since it is larger than the sum of its proper divisors (153300803).

385845565 is a wasteful number, since it uses less digits than its factorization.

385845565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208068.

The product of its digits is 2880000, while the sum is 49.

The square root of 385845565 is about 19642.9520439266. The cubic root of 385845565 is about 728.0108259520.

The spelling of 385845565 in words is "three hundred eighty-five million, eight hundred forty-five thousand, five hundred sixty-five".