385656 has 16 divisors (see below), whose sum is σ = 964200. Its totient is φ = 128544.

The previous prime is 385639. The next prime is 385657. The reversal of 385656 is 656583.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385657) 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, 8011 + ... + 8058.

2³⁸⁵⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

385656 is an abundant number, since it is smaller than the sum of its proper divisors (578544).

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

385656 is a wasteful number, since it uses less digits than its factorization.

385656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16078 (or 16074 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 385656 is about 621.0120771772. The cubic root of 385656 is about 72.7891583098.

The spelling of 385656 in words is "three hundred eighty-five thousand, six hundred fifty-six".