205474 has 8 divisors (see below), whose sum is σ = 312768. Its totient is φ = 101220.

The previous prime is 205463. The next prime is 205477. The reversal of 205474 is 474502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (205477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582 + ... + 865.

It is an arithmetic number, because the mean of its divisors is an integer number (39096).

2²⁰⁵⁴⁷⁴ is an apocalyptic number.

205474 is a deficient number, since it is larger than the sum of its proper divisors (107294).

205474 is a wasteful number, since it uses less digits than its factorization.

205474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 205474 is about 453.2924001128. The cubic root of 205474 is about 59.0090956005.

Adding to 205474 its reverse (474502), we get a palindrome (679976).

The spelling of 205474 in words is "two hundred five thousand, four hundred seventy-four".