204421233 has 16 divisors (see below), whose sum is σ = 275438592. Its totient is φ = 134850000.

The previous prime is 204421199. The next prime is 204421237. The reversal of 204421233 is 332124402.

204421233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204421233 - 2⁸ = 204420977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204421237) 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, 140158 + ... + 141608.

It is an arithmetic number, because the mean of its divisors is an integer number (17214912).

Almost surely, 2^204421233 is an apocalyptic number.

It is an amenable number.

204421233 is a deficient number, since it is larger than the sum of its proper divisors (71017359).

204421233 is a wasteful number, since it uses less digits than its factorization.

204421233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204421233 is about 14297.5953572620. The cubic root of 204421233 is about 589.0814328353.

Adding to 204421233 its reverse (332124402), we get a palindrome (536545635).

The spelling of 204421233 in words is "two hundred four million, four hundred twenty-one thousand, two hundred thirty-three".