204343407 has 12 divisors (see below), whose sum is σ = 295359064. Its totient is φ = 136138320.

The previous prime is 204343397. The next prime is 204343409. The reversal of 204343407 is 704343402.

It is not a de Polignac number, because 204343407 - 2⁶ = 204343343 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 (204343409) 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 11 ways as a sum of consecutive naturals, for example, 8532 + ... + 21942.

Almost surely, 2^204343407 is an apocalyptic number.

204343407 is a deficient number, since it is larger than the sum of its proper divisors (91015657).

204343407 is a wasteful number, since it uses less digits than its factorization.

204343407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110 (or 15107 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 204343407 is about 14294.8734516959. The cubic root of 204343407 is about 589.0066661877.

Adding to 204343407 its reverse (704343402), we get a palindrome (908686809).

The spelling of 204343407 in words is "two hundred four million, three hundred forty-three thousand, four hundred seven".