204412423 has 4 divisors (see below), whose sum is σ = 204441328. Its totient is φ = 204383520.

The previous prime is 204412409. The next prime is 204412433. The reversal of 204412423 is 324214402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 204412423 - 2⁵ = 204412391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204412394 and 204412403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204412433) 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 3 ways as a sum of consecutive naturals, for example, 4063 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (51110332).

Almost surely, 2^204412423 is an apocalyptic number.

204412423 is a deficient number, since it is larger than the sum of its proper divisors (28905).

204412423 is a wasteful number, since it uses less digits than its factorization.

204412423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28904.

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

The square root of 204412423 is about 14297.2872601763. The cubic root of 204412423 is about 589.0729701104.

Adding to 204412423 its reverse (324214402), we get a palindrome (528626825).

The spelling of 204412423 in words is "two hundred four million, four hundred twelve thousand, four hundred twenty-three".