204413 has 4 divisors (see below), whose sum is σ = 223008. Its totient is φ = 185820.

The previous prime is 204397. The next prime is 204427. The reversal of 204413 is 314402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204413 - 2⁴ = 204397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9281 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (55752).

2²⁰⁴⁴¹³ is an apocalyptic number.

It is an amenable number.

204413 is a deficient number, since it is larger than the sum of its proper divisors (18595).

204413 is a wasteful number, since it uses less digits than its factorization.

204413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18594.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 204413 is about 452.1205591432. The cubic root of 204413 is about 58.9073524373.

Adding to 204413 its reverse (314402), we get a palindrome (518815).

The spelling of 204413 in words is "two hundred four thousand, four hundred thirteen".