204343769 has 18 divisors (see below), whose sum is σ = 241566570. Its totient is φ = 172351872.

The previous prime is 204343709. The next prime is 204343781. The reversal of 204343769 is 967343402.

It can be written as a sum of positive squares in only one way, i.e., 116359369 + 87984400 = 10787^2 + 9380^2 .

It is not a de Polignac number, because 204343769 - 2¹² = 204339673 is a prime.

It is a super-2 number, since 2×204343769² = 83512751858250722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204343709) 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 17 ways as a sum of consecutive naturals, for example, 219497 + ... + 220425.

It is an arithmetic number, because the mean of its divisors is an integer number (13420365).

Almost surely, 2^204343769 is an apocalyptic number.

It is an amenable number.

204343769 is a deficient number, since it is larger than the sum of its proper divisors (37222801).

204343769 is an frugal number, since it uses more digits than its factorization.

204343769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 204343769 is about 14294.8861135722. The cubic root of 204343769 is about 589.0070140013.

The spelling of 204343769 in words is "two hundred four million, three hundred forty-three thousand, seven hundred sixty-nine".