204306349 has 4 divisors (see below), whose sum is σ = 220022236. Its totient is φ = 188590464.

The previous prime is 204306329. The next prime is 204306359. The reversal of 204306349 is 943603402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93741124 + 110565225 = 9682^2 + 10515^2 .

It is a cyclic number.

It is not a de Polignac number, because 204306349 - 2¹¹ = 204304301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204306349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204306329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7857924 + ... + 7857949.

It is an arithmetic number, because the mean of its divisors is an integer number (55005559).

Almost surely, 2^204306349 is an apocalyptic number.

It is an amenable number.

204306349 is a deficient number, since it is larger than the sum of its proper divisors (15715887).

204306349 is a wasteful number, since it uses less digits than its factorization.

204306349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715886.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 204306349 is about 14293.5771939707. The cubic root of 204306349 is about 588.9710582716.

The spelling of 204306349 in words is "two hundred four million, three hundred six thousand, three hundred forty-nine".