204055401 has 32 divisors (see below), whose sum is σ = 308722176. Its totient is φ = 118800000.

The previous prime is 204055399. The next prime is 204055429. The reversal of 204055401 is 104550402.

It is not a de Polignac number, because 204055401 - 2¹ = 204055399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204055441) 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, 89526 + ... + 91776.

It is an arithmetic number, because the mean of its divisors is an integer number (9647568).

Almost surely, 2^204055401 is an apocalyptic number.

It is an amenable number.

204055401 is a deficient number, since it is larger than the sum of its proper divisors (104666775).

204055401 is a wasteful number, since it uses less digits than its factorization.

204055401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 204055401 is about 14284.7961483530. The cubic root of 204055401 is about 588.7298165195.

The spelling of 204055401 in words is "two hundred four million, fifty-five thousand, four hundred one".