204334442421 has 8 divisors (see below), whose sum is σ = 273333370464. Its totient is φ = 135779238000.

The previous prime is 204334442419. The next prime is 204334442443. The reversal of 204334442421 is 124244433402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204334442421 - 2¹ = 204334442419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204334442491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110929830 + ... + 110931671.

It is an arithmetic number, because the mean of its divisors is an integer number (34166671308).

Almost surely, 2^204334442421 is an apocalyptic number.

It is an amenable number.

204334442421 is a deficient number, since it is larger than the sum of its proper divisors (68998928043).

204334442421 is a wasteful number, since it uses less digits than its factorization.

204334442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221861811.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 204334442421 its reverse (124244433402), we get a palindrome (328578875823).

The spelling of 204334442421 in words is "two hundred four billion, three hundred thirty-four million, four hundred forty-two thousand, four hundred twenty-one".