204242001 has 32 divisors (see below), whose sum is σ = 302883840. Its totient is φ = 121834944.

The previous prime is 204241997. The next prime is 204242009. The reversal of 204242001 is 100242402.

It is not a de Polignac number, because 204242001 - 2² = 204241997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204242009) 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 31 ways as a sum of consecutive naturals, for example, 107875 + ... + 109751.

It is an arithmetic number, because the mean of its divisors is an integer number (9465120).

Almost surely, 2^204242001 is an apocalyptic number.

It is an amenable number.

204242001 is a deficient number, since it is larger than the sum of its proper divisors (98641839).

204242001 is a wasteful number, since it uses less digits than its factorization.

204242001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204242001 is about 14291.3260756306. The cubic root of 204242001 is about 588.9092179855.

Adding to 204242001 its reverse (100242402), we get a palindrome (304484403).

The spelling of 204242001 in words is "two hundred four million, two hundred forty-two thousand, one".