204442231 has 16 divisors (see below), whose sum is σ = 236144448. Its totient is φ = 173376000.

The previous prime is 204442213. The next prime is 204442237. The reversal of 204442231 is 132244402.

It is a happy number.

It is not a de Polignac number, because 204442231 - 2⁹ = 204441719 is a prime.

It is a super-2 number, since 2×204442231² = 83593251632514722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204442237) 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, 485401 + ... + 485821.

It is an arithmetic number, because the mean of its divisors is an integer number (14759028).

Almost surely, 2^204442231 is an apocalyptic number.

204442231 is a deficient number, since it is larger than the sum of its proper divisors (31702217).

204442231 is a wasteful number, since it uses less digits than its factorization.

204442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 204442231 is about 14298.3296576908. The cubic root of 204442231 is about 589.1016021498.

Adding to 204442231 its reverse (132244402), we get a palindrome (336686633).

The spelling of 204442231 in words is "two hundred four million, four hundred forty-two thousand, two hundred thirty-one".