204742829 has 4 divisors (see below), whose sum is σ = 205025184. Its totient is φ = 204460476.

The previous prime is 204742819. The next prime is 204742831. The reversal of 204742829 is 928247402.

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 204742829 - 2¹⁶ = 204677293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204742792 and 204742801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204742819) 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 3 ways as a sum of consecutive naturals, for example, 140087 + ... + 141540.

It is an arithmetic number, because the mean of its divisors is an integer number (51256296).

Almost surely, 2^204742829 is an apocalyptic number.

It is an amenable number.

204742829 is a deficient number, since it is larger than the sum of its proper divisors (282355).

204742829 is an equidigital number, since it uses as much as digits as its factorization.

204742829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282354.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 204742829 is about 14308.8374440414. The cubic root of 204742829 is about 589.3901857808.

The spelling of 204742829 in words is "two hundred four million, seven hundred forty-two thousand, eight hundred twenty-nine".