385000000 has 224 divisors, whose sum is σ = 1190621952. Its totient is φ = 120000000.

The previous prime is 384999997. The next prime is 385000043. The reversal of 385000000 is 583.

385000000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34999995 + ... + 35000005.

Almost surely, 2^385000000 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 385000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595310976).

385000000 is an abundant number, since it is smaller than the sum of its proper divisors (805621952).

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

385000000 is an frugal number, since it uses more digits than its factorization.

385000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 385000000 is about 19621.4168703486. The cubic root of 385000000 is about 727.4786348791.

Adding to 385000000 its reverse (583), we get a palindrome (385000583).

The spelling of 385000000 in words is "three hundred eighty-five million", and thus it is an aban number.