441665601 has 8 divisors (see below), whose sum is σ = 634186560. Its totient is φ = 271794192.

The previous prime is 441665597. The next prime is 441665611. The reversal of 441665601 is 106566144.

It is a happy number.

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

It is not a de Polignac number, because 441665601 - 2² = 441665597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (441665611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5662341 + ... + 5662418.

It is an arithmetic number, because the mean of its divisors is an integer number (79273320).

Almost surely, 2^441665601 is an apocalyptic number.

It is an amenable number.

441665601 is a deficient number, since it is larger than the sum of its proper divisors (192520959).

441665601 is a wasteful number, since it uses less digits than its factorization.

441665601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324775.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 441665601 is about 21015.8416676563. The cubic root of 441665601 is about 761.5490111784.

The spelling of 441665601 in words is "four hundred forty-one million, six hundred sixty-five thousand, six hundred one".