404440001 has 8 divisors (see below), whose sum is σ = 465054144. Its totient is φ = 344535120.

The previous prime is 404439989. The next prime is 404440019. The reversal of 404440001 is 100044404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404440001 - 2¹⁸ = 404177857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404440021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176090 + ... + 178371.

It is an arithmetic number, because the mean of its divisors is an integer number (58131768).

Almost surely, 2^404440001 is an apocalyptic number.

It is an amenable number.

404440001 is a deficient number, since it is larger than the sum of its proper divisors (60614143).

404440001 is a wasteful number, since it uses less digits than its factorization.

404440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354631.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 404440001 is about 20110.6936976326. The cubic root of 404440001 is about 739.5224585142.

Adding to 404440001 its reverse (100044404), we get a palindrome (504484405).

The spelling of 404440001 in words is "four hundred four million, four hundred forty thousand, one".