204342261 has 16 divisors (see below), whose sum is σ = 289008000. Its totient is φ = 127981568.

The previous prime is 204342247. The next prime is 204342263. The reversal of 204342261 is 162243402.

204342261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 204342261 - 2⁷ = 204342133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204342263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27205 + ... + 33893.

It is an arithmetic number, because the mean of its divisors is an integer number (18063000).

Almost surely, 2^204342261 is an apocalyptic number.

It is an amenable number.

204342261 is a deficient number, since it is larger than the sum of its proper divisors (84665739).

204342261 is a wasteful number, since it uses less digits than its factorization.

204342261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 204342261 is about 14294.8333673394. The cubic root of 204342261 is about 589.0055650953.

Adding to 204342261 its reverse (162243402), we get a palindrome (366585663).

The spelling of 204342261 in words is "two hundred four million, three hundred forty-two thousand, two hundred sixty-one".