385378668 has 36 divisors (see below), whose sum is σ = 999659080. Its totient is φ = 128391552.

The previous prime is 385378649. The next prime is 385378673. The reversal of 385378668 is 866873583.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

385378668 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203068 + ... + 204956.

Almost surely, 2^385378668 is an apocalyptic number.

It is an amenable number.

385378668 is an abundant number, since it is smaller than the sum of its proper divisors (614280412).

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

385378668 is an equidigital number, since it uses as much as digits as its factorization.

385378668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791 (or 1894 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 385378668 is about 19631.0638529857. The cubic root of 385378668 is about 727.7170613856.

The spelling of 385378668 in words is "three hundred eighty-five million, three hundred seventy-eight thousand, six hundred sixty-eight".