386685504 has 84 divisors (see below), whose sum is σ = 1114788220. Its totient is φ = 128148480.

The previous prime is 386685493. The next prime is 386685517. The reversal of 386685504 is 405586683.

386685504 is a `hidden beast` number, since 3 + 8 + 66 + 85 + 504 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38937600 + 347747904 = 6240^2 + 18648^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 386685504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102402 + ... + 106110.

Almost surely, 2^386685504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386685504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557394110).

386685504 is an abundant number, since it is smaller than the sum of its proper divisors (728102716).

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

386685504 is a wasteful number, since it uses less digits than its factorization.

386685504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 386685504 is about 19664.3205832289. The cubic root of 386685504 is about 728.5387068514.

The spelling of 386685504 in words is "three hundred eighty-six million, six hundred eighty-five thousand, five hundred four".