204629305 has 16 divisors (see below), whose sum is σ = 251483904. Its totient is φ = 159770880.

The previous prime is 204629281. The next prime is 204629309. The reversal of 204629305 is 503926402.

It is not a de Polignac number, because 204629305 - 2⁵ = 204629273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204629309) 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 15 ways as a sum of consecutive naturals, for example, 100750 + ... + 102760.

It is an arithmetic number, because the mean of its divisors is an integer number (15717744).

Almost surely, 2^204629305 is an apocalyptic number.

It is an amenable number.

204629305 is a deficient number, since it is larger than the sum of its proper divisors (46854599).

204629305 is a wasteful number, since it uses less digits than its factorization.

204629305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 204629305 is about 14304.8699749421. The cubic root of 204629305 is about 589.2812323486.

The spelling of 204629305 in words is "two hundred four million, six hundred twenty-nine thousand, three hundred five".