385556 has 12 divisors (see below), whose sum is σ = 681492. Its totient is φ = 190848.

The previous prime is 385537. The next prime is 385559. The reversal of 385556 is 655583.

It can be written as a sum of positive squares in 2 ways, for example, as 13456 + 372100 = 116^2 + 610^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 385556.

It is not an unprimeable number, because it can be changed into a prime (385559) by changing a digit.

385556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (56791).

2³⁸⁵⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

385556 is a deficient number, since it is larger than the sum of its proper divisors (295936).

385556 is a wasteful number, since it uses less digits than its factorization.

385556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 385556 is about 620.9315582252. The cubic root of 385556 is about 72.7828663942.

The spelling of 385556 in words is "three hundred eighty-five thousand, five hundred fifty-six".