386937856 has 44 divisors (see below), whose sum is σ = 778187520. Its totient is φ = 192296960.

The previous prime is 386937839. The next prime is 386937857. The reversal of 386937856 is 658739683.

It is a junction number, because it is equal to n+sod(n) for n = 386937797 and 386937806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386937857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182241 + ... + 184351.

It is an arithmetic number, because the mean of its divisors is an integer number (17686080).

Almost surely, 2^386937856 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 386937856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389093760).

386937856 is an abundant number, since it is smaller than the sum of its proper divisors (391249664).

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

386937856 is a wasteful number, since it uses less digits than its factorization.

386937856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310 (or 2292 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 386937856 is about 19670.7360309674. The cubic root of 386937856 is about 728.6971544952.

Subtracting from 386937856 its product of digits (6531840), we obtain a square (380406016 = 19504²).

The spelling of 386937856 in words is "three hundred eighty-six million, nine hundred thirty-seven thousand, eight hundred fifty-six".