385518387 has 16 divisors (see below), whose sum is σ = 553678848. Its totient is φ = 237906240.

The previous prime is 385518359. The next prime is 385518389. The reversal of 385518387 is 783815583.

It is a happy number.

It is not a de Polignac number, because 385518387 - 2¹⁴ = 385502003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385518389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87978 + ... + 92255.

It is an arithmetic number, because the mean of its divisors is an integer number (34604928).

Almost surely, 2^385518387 is an apocalyptic number.

385518387 is a deficient number, since it is larger than the sum of its proper divisors (168160461).

385518387 is a wasteful number, since it uses less digits than its factorization.

385518387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180290.

The product of its digits is 806400, while the sum is 48.

The square root of 385518387 is about 19634.6221506807. The cubic root of 385518387 is about 727.8049953438.

The spelling of 385518387 in words is "three hundred eighty-five million, five hundred eighteen thousand, three hundred eighty-seven".