204022401 has 16 divisors (see below), whose sum is σ = 303663360. Its totient is φ = 120773520.

The previous prime is 204022391. The next prime is 204022409. The reversal of 204022401 is 104220402.

It is not a de Polignac number, because 204022401 - 2¹¹ = 204020353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204022409) 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, 70471 + ... + 73308.

It is an arithmetic number, because the mean of its divisors is an integer number (18978960).

Almost surely, 2^204022401 is an apocalyptic number.

It is an amenable number.

204022401 is a deficient number, since it is larger than the sum of its proper divisors (99640959).

204022401 is a wasteful number, since it uses less digits than its factorization.

204022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143836.

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

The square root of 204022401 is about 14283.6410274131. The cubic root of 204022401 is about 588.6980781921.

Adding to 204022401 its reverse (104220402), we get a palindrome (308242803).

The spelling of 204022401 in words is "two hundred four million, twenty-two thousand, four hundred one".