204302345 has 64 divisors (see below), whose sum is σ = 303367680. Its totient is φ = 130387968.

The previous prime is 204302341. The next prime is 204302347. The reversal of 204302345 is 543203402.

It is a cyclic number.

It is not a de Polignac number, because 204302345 - 2² = 204302341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204302345.

It is not an unprimeable number, because it can be changed into a prime (204302341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 776684 + ... + 776946.

It is an arithmetic number, because the mean of its divisors is an integer number (4740120).

Almost surely, 2^204302345 is an apocalyptic number.

It is an amenable number.

204302345 is a deficient number, since it is larger than the sum of its proper divisors (99065335).

204302345 is a wasteful number, since it uses less digits than its factorization.

204302345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 204302345 is about 14293.4371303756. The cubic root of 204302345 is about 588.9672106909.

Adding to 204302345 its reverse (543203402), we get a palindrome (747505747).

The spelling of 204302345 in words is "two hundred four million, three hundred two thousand, three hundred forty-five".