385508 has 6 divisors (see below), whose sum is σ = 674646. Its totient is φ = 192752.

The previous prime is 385501. The next prime is 385519. The reversal of 385508 is 805583.

385508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 362404 + 23104 = 602^2 + 152^2 .

It is not an unprimeable number, because it can be changed into a prime (385501) by changing a digit.

385508 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 as a sum of consecutive naturals, namely, 48185 + ... + 48192.

It is an arithmetic number, because the mean of its divisors is an integer number (112441).

2³⁸⁵⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

385508 is a deficient number, since it is larger than the sum of its proper divisors (289138).

385508 is a wasteful number, since it uses less digits than its factorization.

385508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96381 (or 96379 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 385508 is about 620.8929054193. The cubic root of 385508 is about 72.7798458882.

The spelling of 385508 in words is "three hundred eighty-five thousand, five hundred eight".