204388841 has 8 divisors (see below), whose sum is σ = 216901800. Its totient is φ = 191930368.

The previous prime is 204388819. The next prime is 204388861. The reversal of 204388841 is 148883402.

It can be written as a sum of positive squares in 4 ways, for example, as 30913600 + 173475241 = 5560^2 + 13171^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 204388841 - 2¹⁰ = 204387817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204388795 and 204388804.

It is not an unprimeable number, because it can be changed into a prime (204388801) 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, 5756 + ... + 21021.

It is an arithmetic number, because the mean of its divisors is an integer number (27112725).

Almost surely, 2^204388841 is an apocalyptic number.

It is an amenable number.

204388841 is a deficient number, since it is larger than the sum of its proper divisors (12512959).

204388841 is a wasteful number, since it uses less digits than its factorization.

204388841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27243.

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 204388841 is about 14296.4625344873. The cubic root of 204388841 is about 589.0503164758.

The spelling of 204388841 in words is "two hundred four million, three hundred eighty-eight thousand, eight hundred forty-one".