204200001 has 16 divisors (see below), whose sum is σ = 307480320. Its totient is φ = 133900560.

The previous prime is 204199999. The next prime is 204200021. The reversal of 204200001 is 100002402.

It is not a de Polignac number, because 204200001 - 2¹ = 204199999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (204200021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60345 + ... + 63638.

It is an arithmetic number, because the mean of its divisors is an integer number (19217520).

Almost surely, 2^204200001 is an apocalyptic number.

It is an amenable number.

204200001 is a deficient number, since it is larger than the sum of its proper divisors (103280319).

204200001 is a wasteful number, since it uses less digits than its factorization.

204200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124053 (or 124047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 204200001 is about 14289.8565773069. The cubic root of 204200001 is about 588.8688477667.

Adding to 204200001 its reverse (100002402), we get a palindrome (304202403).

The spelling of 204200001 in words is "two hundred four million, two hundred thousand, one".