385445868 has 48 divisors (see below), whose sum is σ = 941740800. Its totient is φ = 122468544.

The previous prime is 385445861. The next prime is 385445869. The reversal of 385445868 is 868544583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 385445868.

It is not an unprimeable number, because it can be changed into a prime (385445861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82458 + ... + 87006.

It is an arithmetic number, because the mean of its divisors is an integer number (19619600).

Almost surely, 2^385445868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385445868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470870400).

385445868 is an abundant number, since it is smaller than the sum of its proper divisors (556294932).

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

385445868 is a wasteful number, since it uses less digits than its factorization.

385445868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886 (or 4884 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The square root of 385445868 is about 19632.7753514372. The cubic root of 385445868 is about 727.7593572264.

The spelling of 385445868 in words is "three hundred eighty-five million, four hundred forty-five thousand, eight hundred sixty-eight".