385240916 has 12 divisors (see below), whose sum is σ = 677560800. Its totient is φ = 191652120.

The previous prime is 385240873. The next prime is 385240939. The reversal of 385240916 is 619042583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 385240916.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 241190 + ... + 242781.

It is an arithmetic number, because the mean of its divisors is an integer number (56463400).

Almost surely, 2^385240916 is an apocalyptic number.

It is an amenable number.

385240916 is a deficient number, since it is larger than the sum of its proper divisors (292319884).

385240916 is a wasteful number, since it uses less digits than its factorization.

385240916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484174 (or 484172 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 385240916 is about 19627.5550183919. Note that the first 3 decimals coincide. The cubic root of 385240916 is about 727.6303445749.

The spelling of 385240916 in words is "three hundred eighty-five million, two hundred forty thousand, nine hundred sixteen".