205204424 has 8 divisors (see below), whose sum is σ = 384758310. Its totient is φ = 102602208.

The previous prime is 205204421. The next prime is 205204457. The reversal of 205204424 is 424402502.

205204424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 186868900 + 18335524 = 13670^2 + 4282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 205204424.

It is not an unprimeable number, because it can be changed into a prime (205204421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12825269 + ... + 12825284.

Almost surely, 2^205204424 is an apocalyptic number.

It is an amenable number.

205204424 is a deficient number, since it is larger than the sum of its proper divisors (179553886).

205204424 is a wasteful number, since it uses less digits than its factorization.

205204424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25650559 (or 25650555 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 205204424 is about 14324.9580802179. The cubic root of 205204424 is about 589.8327822583.

Adding to 205204424 its reverse (424402502), we get a palindrome (629606926).

The spelling of 205204424 in words is "two hundred five million, two hundred four thousand, four hundred twenty-four".