385476666 has 16 divisors (see below), whose sum is σ = 816303744. Its totient is φ = 120933824.

The previous prime is 385476659. The next prime is 385476667. The reversal of 385476666 is 666674583.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (385476667) 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 7 ways as a sum of consecutive naturals, for example, 1889490 + ... + 1889693.

It is an arithmetic number, because the mean of its divisors is an integer number (51018984).

Almost surely, 2^385476666 is an apocalyptic number.

385476666 is an abundant number, since it is smaller than the sum of its proper divisors (430827078).

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

385476666 is a wasteful number, since it uses less digits than its factorization.

385476666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779205.

The product of its digits is 4354560, while the sum is 51.

The square root of 385476666 is about 19633.5596874331. The cubic root of 385476666 is about 727.7787399185.

The spelling of 385476666 in words is "three hundred eighty-five million, four hundred seventy-six thousand, six hundred sixty-six".