204308367349 has 4 divisors (see below), whose sum is σ = 204584834080. Its totient is φ = 204031900620.

The previous prime is 204308367343. The next prime is 204308367353. The reversal of 204308367349 is 943763803402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204308367349 - 2³³ = 195718432757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204308367343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138232257 + ... + 138233734.

It is an arithmetic number, because the mean of its divisors is an integer number (51146208520).

Almost surely, 2^204308367349 is an apocalyptic number.

It is an amenable number.

204308367349 is a deficient number, since it is larger than the sum of its proper divisors (276466731).

204308367349 is an equidigital number, since it uses as much as digits as its factorization.

204308367349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276466730.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 204308367349 in words is "two hundred four billion, three hundred eight million, three hundred sixty-seven thousand, three hundred forty-nine".