385438844 has 12 divisors (see below), whose sum is σ = 770877744. Its totient is φ = 165188064.

The previous prime is 385438817. The next prime is 385438849. The reversal of 385438844 is 448834583.

385438844 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385438849) by changing a digit.

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, 6882809 + ... + 6882864.

It is an arithmetic number, because the mean of its divisors is an integer number (64239812).

Almost surely, 2^385438844 is an apocalyptic number.

It is an amenable number.

385438844 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.

385438844 is a wasteful number, since it uses less digits than its factorization.

385438844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765684 (or 13765682 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 47.

The square root of 385438844 is about 19632.5964660816. The cubic root of 385438844 is about 727.7549365341.

The spelling of 385438844 in words is "three hundred eighty-five million, four hundred thirty-eight thousand, eight hundred forty-four".