204742041 has 12 divisors (see below), whose sum is σ = 317559312. Its totient is φ = 116995368.

The previous prime is 204742019. The next prime is 204742051. The reversal of 204742041 is 140247402.

It is not a de Polignac number, because 204742041 - 2⁷ = 204741913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204742051) 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, 696255 + ... + 696548.

It is an arithmetic number, because the mean of its divisors is an integer number (26463276).

Almost surely, 2^204742041 is an apocalyptic number.

204742041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204742041 is a deficient number, since it is larger than the sum of its proper divisors (112817271).

204742041 is a wasteful number, since it uses less digits than its factorization.

204742041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392820 (or 1392813 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 204742041 is about 14308.8099085843. The cubic root of 204742041 is about 589.3894296451.

Adding to 204742041 its reverse (140247402), we get a palindrome (344989443).

The spelling of 204742041 in words is "two hundred four million, seven hundred forty-two thousand, forty-one".