385668315 has 24 divisors (see below), whose sum is σ = 670381920. Its totient is φ = 205108224.

The previous prime is 385668299. The next prime is 385668317. The reversal of 385668315 is 513866583.

385668315 is a `hidden beast` number, since 3 + 8 + 566 + 83 + 1 + 5 = 666.

It is not a de Polignac number, because 385668315 - 2⁴ = 385668299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (385668317) 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 23 ways as a sum of consecutive naturals, for example, 4219 + ... + 28091.

It is an arithmetic number, because the mean of its divisors is an integer number (27932580).

Almost surely, 2^385668315 is an apocalyptic number.

385668315 is a deficient number, since it is larger than the sum of its proper divisors (284713605).

385668315 is a wasteful number, since it uses less digits than its factorization.

385668315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24243 (or 24240 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 385668315 is about 19638.4397292657. The cubic root of 385668315 is about 727.8993308400.

The spelling of 385668315 in words is "three hundred eighty-five million, six hundred sixty-eight thousand, three hundred fifteen".