204354 has 12 divisors (see below), whose sum is σ = 442806. Its totient is φ = 68112.

The previous prime is 204353. The next prime is 204359. The reversal of 204354 is 453402.

It is a happy number.

204354 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 15129 = 435^2 + 123^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11353 = 204354 / (2 + 0 + 4 + 3 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (204353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5659 + ... + 5694.

2²⁰⁴³⁵⁴ is an apocalyptic number.

204354 is an abundant number, since it is smaller than the sum of its proper divisors (238452).

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

204354 is a wasteful number, since it uses less digits than its factorization.

204354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11361 (or 11358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 204354 is about 452.0553063509. The cubic root of 204354 is about 58.9016843891.

Adding to 204354 its reverse (453402), we get a palindrome (657756).

The spelling of 204354 in words is "two hundred four thousand, three hundred fifty-four".