386688688 has 20 divisors (see below), whose sum is σ = 753400440. Its totient is φ = 192262784.

The previous prime is 386688661. The next prime is 386688707. The reversal of 386688688 is 886886683.

It is a super-2 number, since 2×386688688² = 299056282854322688, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 64645 + ... + 70372.

It is an arithmetic number, because the mean of its divisors is an integer number (37670022).

Almost surely, 2^386688688 is an apocalyptic number.

It is an amenable number.

386688688 is a deficient number, since it is larger than the sum of its proper divisors (366711752).

386688688 is a wasteful number, since it uses less digits than its factorization.

386688688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135204 (or 135198 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 61.

The square root of 386688688 is about 19664.4015418726. The cubic root of 386688688 is about 728.5407064616.

The spelling of 386688688 in words is "three hundred eighty-six million, six hundred eighty-eight thousand, six hundred eighty-eight".