385164864 has 84 divisors (see below), whose sum is σ = 1261733824. Its totient is φ = 110045952.

The previous prime is 385164853. The next prime is 385164887. The reversal of 385164864 is 468461583.

385164864 is a `hidden beast` number, since 38 + 516 + 48 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

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 11 ways as a sum of consecutive naturals, for example, 43732 + ... + 51795.

Almost surely, 2^385164864 is an apocalyptic number.

It is an amenable number.

385164864 is an abundant number, since it is smaller than the sum of its proper divisors (876568960).

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

385164864 is a wasteful number, since it uses less digits than its factorization.

385164864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95552 (or 95539 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 385164864 is about 19625.6175444239. The cubic root of 385164864 is about 727.5824599201.

The spelling of 385164864 in words is "three hundred eighty-five million, one hundred sixty-four thousand, eight hundred sixty-four".