204431361 has 8 divisors (see below), whose sum is σ = 272658144. Its totient is φ = 136246080.

The previous prime is 204431333. The next prime is 204431363. The reversal of 204431361 is 163134402.

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

It is not a de Polignac number, because 204431361 - 2¹³ = 204423169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204431363) 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, 3945 + ... + 20601.

It is an arithmetic number, because the mean of its divisors is an integer number (34082268).

Almost surely, 2^204431361 is an apocalyptic number.

It is an amenable number.

204431361 is a deficient number, since it is larger than the sum of its proper divisors (68226783).

204431361 is a wasteful number, since it uses less digits than its factorization.

204431361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20751.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 204431361 is about 14297.9495383079. The cubic root of 204431361 is about 589.0911613065.

Adding to 204431361 its reverse (163134402), we get a palindrome (367565763).

The spelling of 204431361 in words is "two hundred four million, four hundred thirty-one thousand, three hundred sixty-one".