385994180 has 144 divisors (see below), whose sum is σ = 1013777856. Its totient is φ = 121681920.

The previous prime is 385994149. The next prime is 385994207. The reversal of 385994180 is 81499583.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 826307 + ... + 826773.

It is an arithmetic number, because the mean of its divisors is an integer number (7040124).

Almost surely, 2^385994180 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 385994180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506888928).

385994180 is an abundant number, since it is smaller than the sum of its proper divisors (627783676).

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

385994180 is a wasteful number, since it uses less digits than its factorization.

385994180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 385994180 is about 19646.7345887300. The cubic root of 385994180 is about 728.1042825495.

The spelling of 385994180 in words is "three hundred eighty-five million, nine hundred ninety-four thousand, one hundred eighty".