386660856 has 64 divisors (see below), whose sum is σ = 984592800. Its totient is φ = 126517248.

The previous prime is 386660851. The next prime is 386660863. The reversal of 386660856 is 658066683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386660851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334776 + ... + 335928.

Almost surely, 2^386660856 is an apocalyptic number.

It is an amenable number.

386660856 is an abundant number, since it is smaller than the sum of its proper divisors (597931944).

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

386660856 is a wasteful number, since it uses less digits than its factorization.

386660856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 386660856 is about 19663.6938544110. The cubic root of 386660856 is about 728.5232270852.

The spelling of 386660856 in words is "three hundred eighty-six million, six hundred sixty thousand, eight hundred fifty-six".