204040244 has 6 divisors (see below), whose sum is σ = 357070434. Its totient is φ = 102020120.

The previous prime is 204040223. The next prime is 204040247. The reversal of 204040244 is 442040402.

It can be written as a sum of positive squares in only one way, i.e., 137780644 + 66259600 = 11738^2 + 8140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505027 + ... + 25505034.

It is an arithmetic number, because the mean of its divisors is an integer number (59511739).

Almost surely, 2^204040244 is an apocalyptic number.

It is an amenable number.

204040244 is a deficient number, since it is larger than the sum of its proper divisors (153030190).

204040244 is a wasteful number, since it uses less digits than its factorization.

204040244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010065 (or 51010063 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 204040244 is about 14284.2656094039. The cubic root of 204040244 is about 588.7152394345.

Adding to 204040244 its reverse (442040402), we get a palindrome (646080646).

The spelling of 204040244 in words is "two hundred four million, forty thousand, two hundred forty-four".