204489413 has 4 divisors (see below), whose sum is σ = 216518220. Its totient is φ = 192460608.

The previous prime is 204489407. The next prime is 204489497. The reversal of 204489413 is 314984402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169182049 + 35307364 = 13007^2 + 5942^2 .

It is a cyclic number.

It is not a de Polignac number, because 204489413 - 2⁸ = 204489157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204489613) 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, 6014378 + ... + 6014411.

It is an arithmetic number, because the mean of its divisors is an integer number (54129555).

Almost surely, 2^204489413 is an apocalyptic number.

It is an amenable number.

204489413 is a deficient number, since it is larger than the sum of its proper divisors (12028807).

204489413 is a wasteful number, since it uses less digits than its factorization.

204489413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028806.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 204489413 is about 14299.9794755097. The cubic root of 204489413 is about 589.1469170760.

The spelling of 204489413 in words is "two hundred four million, four hundred eighty-nine thousand, four hundred thirteen".