385188684 has 12 divisors (see below), whose sum is σ = 898773624. Its totient is φ = 128396224.

The previous prime is 385188679. The next prime is 385188719. The reversal of 385188684 is 486881583.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16049517 + ... + 16049540.

It is an arithmetic number, because the mean of its divisors is an integer number (74897802).

Almost surely, 2^385188684 is an apocalyptic number.

It is an amenable number.

385188684 is an abundant number, since it is smaller than the sum of its proper divisors (513584940).

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

385188684 is a wasteful number, since it uses less digits than its factorization.

385188684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32099064 (or 32099062 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The square root of 385188684 is about 19626.2243949263. The cubic root of 385188684 is about 727.5974583952.

The spelling of 385188684 in words is "three hundred eighty-five million, one hundred eighty-eight thousand, six hundred eighty-four".