385336866 has 8 divisors (see below), whose sum is σ = 770673744. Its totient is φ = 128445620.

The previous prime is 385336849. The next prime is 385336867. The reversal of 385336866 is 668633583.

It is a sphenic number, since it is the product of 3 distinct primes.

385336866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (385336867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32111400 + ... + 32111411.

It is an arithmetic number, because the mean of its divisors is an integer number (96334218).

Almost surely, 2^385336866 is an apocalyptic number.

385336866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385336866 is a wasteful number, since it uses less digits than its factorization.

385336866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64222816.

The product of its digits is 1866240, while the sum is 48.

The square root of 385336866 is about 19629.9991339786. Note that the first 3 decimals coincide. The cubic root of 385336866 is about 727.6907486262.

The spelling of 385336866 in words is "three hundred eighty-five million, three hundred thirty-six thousand, eight hundred sixty-six".