386489856 has 40 divisors (see below), whose sum is σ = 1029637224. Its totient is φ = 128829440.

The previous prime is 386489801. The next prime is 386489863. The reversal of 386489856 is 658984683.

It is a junction number, because it is equal to n+sod(n) for n = 386489796 and 386489805.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 124275 + ... + 127346.

Almost surely, 2^386489856 is an apocalyptic number.

It is an amenable number.

386489856 is an abundant number, since it is smaller than the sum of its proper divisors (643147368).

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

386489856 is an equidigital number, since it uses as much as digits as its factorization.

386489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251642 (or 251626 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The square root of 386489856 is about 19659.3452586804. The cubic root of 386489856 is about 728.4158152632.

The spelling of 386489856 in words is "three hundred eighty-six million, four hundred eighty-nine thousand, eight hundred fifty-six".