204243454430 has 64 divisors (see below), whose sum is σ = 382580029440. Its totient is φ = 78420873600.

The previous prime is 204243454421. The next prime is 204243454451. The reversal of 204243454430 is 34454342402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86652812 + ... + 86655168.

It is an arithmetic number, because the mean of its divisors is an integer number (5977812960).

Almost surely, 2^204243454430 is an apocalyptic number.

204243454430 is a deficient number, since it is larger than the sum of its proper divisors (178336575010).

204243454430 is a wasteful number, since it uses less digits than its factorization.

204243454430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 204243454430 its reverse (34454342402), we get a palindrome (238697796832).

The spelling of 204243454430 in words is "two hundred four billion, two hundred forty-three million, four hundred fifty-four thousand, four hundred thirty".