204440404401 has 12 divisors (see below), whose sum is σ = 295325846400. Its totient is φ = 136282969080.

The previous prime is 204440404391. The next prime is 204440404409. The reversal of 204440404401 is 104404044402.

It is not a de Polignac number, because 204440404401 - 2⁹ = 204440403889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204440404409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763501 + ... + 995898.

It is an arithmetic number, because the mean of its divisors is an integer number (24610487200).

Almost surely, 2^204440404401 is an apocalyptic number.

It is an amenable number.

204440404401 is a deficient number, since it is larger than the sum of its proper divisors (90885441999).

204440404401 is a wasteful number, since it uses less digits than its factorization.

204440404401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772316 (or 1772313 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 204440404401 its reverse (104404044402), we get a palindrome (308844448803).

The spelling of 204440404401 in words is "two hundred four billion, four hundred forty million, four hundred four thousand, four hundred one".