204405041 has 8 divisors (see below), whose sum is σ = 211213824. Its totient is φ = 197609760.

The previous prime is 204405023. The next prime is 204405043. The reversal of 204405041 is 140504402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204405041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204405043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34220 + ... + 39746.

It is an arithmetic number, because the mean of its divisors is an integer number (26401728).

Almost surely, 2^204405041 is an apocalyptic number.

It is an amenable number.

204405041 is a deficient number, since it is larger than the sum of its proper divisors (6808783).

204405041 is a wasteful number, since it uses less digits than its factorization.

204405041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204405041 is about 14297.0290969838. The cubic root of 204405041 is about 589.0658789089.

Adding to 204405041 its reverse (140504402), we get a palindrome (344909443).

The spelling of 204405041 in words is "two hundred four million, four hundred five thousand, forty-one".