385733856 has 24 divisors (see below), whose sum is σ = 1012551624. Its totient is φ = 128577920.

The previous prime is 385733819. The next prime is 385733861. The reversal of 385733856 is 658337583.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 2008935 + ... + 2009126.

It is an arithmetic number, because the mean of its divisors is an integer number (42189651).

Almost surely, 2^385733856 is an apocalyptic number.

It is an amenable number.

385733856 is an abundant number, since it is smaller than the sum of its proper divisors (626817768).

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

385733856 is a wasteful number, since it uses less digits than its factorization.

385733856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018074 (or 4018066 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The square root of 385733856 is about 19640.1083500066. The cubic root of 385733856 is about 727.9405619065.

The spelling of 385733856 in words is "three hundred eighty-five million, seven hundred thirty-three thousand, eight hundred fifty-six".