201812204 has 24 divisors (see below), whose sum is σ = 386979600. Its totient is φ = 91327680.

The previous prime is 201812203. The next prime is 201812227. The reversal of 201812204 is 402218102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201812203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62 + ... + 20090.

It is an arithmetic number, because the mean of its divisors is an integer number (16124150).

Almost surely, 2^201812204 is an apocalyptic number.

It is an amenable number.

201812204 is a deficient number, since it is larger than the sum of its proper divisors (185167396).

201812204 is a wasteful number, since it uses less digits than its factorization.

201812204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20273 (or 20271 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 201812204 is about 14206.0622270916. The cubic root of 201812204 is about 586.5645450403.

The spelling of 201812204 in words is "two hundred one million, eight hundred twelve thousand, two hundred four".