13204305 has 24 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 6988320.

The previous prime is 13204283. The next prime is 13204327. The reversal of 13204305 is 50340231.

It is an interprime number because it is at equal distance from previous prime (13204283) and next prime (13204327).

It is not a de Polignac number, because 13204305 - 2⁵ = 13204273 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5200 + ... + 7310.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^13204305 is an apocalyptic number.

13204305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13204305 is a deficient number, since it is larger than the sum of its proper divisors (9858735).

13204305 is a wasteful number, since it uses less digits than its factorization.

13204305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13204305 is about 3633.7728327456. The cubic root of 13204305 is about 236.3588395790.

Adding to 13204305 its reverse (50340231), we get a palindrome (63544536).

It can be divided in two parts, 1320 and 4305, that added together give a square (5625 = 75²).

The spelling of 13204305 in words is "thirteen million, two hundred four thousand, three hundred five".