205308 has 24 divisors (see below), whose sum is σ = 532560. Its totient is φ = 68400.

The previous prime is 205307. The next prime is 205319. The reversal of 205308 is 803502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 1058.

It is an arithmetic number, because the mean of its divisors is an integer number (22190).

2²⁰⁵³⁰⁸ is an apocalyptic number.

It is an amenable number.

205308 is an abundant number, since it is smaller than the sum of its proper divisors (327252).

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

205308 is a wasteful number, since it uses less digits than its factorization.

205308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 205308 is about 453.1092583473. The cubic root of 205308 is about 58.9932004038.

The spelling of 205308 in words is "two hundred five thousand, three hundred eight".