385340385 has 32 divisors (see below), whose sum is σ = 653663232. Its totient is φ = 193501440.

The previous prime is 385340341. The next prime is 385340393. The reversal of 385340385 is 583043583.

It is not a de Polignac number, because 385340385 - 2⁷ = 385340257 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6007 + ... + 28403.

It is an arithmetic number, because the mean of its divisors is an integer number (20426976).

Almost surely, 2^385340385 is an apocalyptic number.

It is an amenable number.

385340385 is a deficient number, since it is larger than the sum of its proper divisors (268322847).

385340385 is a wasteful number, since it uses less digits than its factorization.

385340385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 385340385 is about 19630.0887669924. The cubic root of 385340385 is about 727.6929637754.

The spelling of 385340385 in words is "three hundred eighty-five million, three hundred forty thousand, three hundred eighty-five".