4004401 has 4 divisors (see below), whose sum is σ = 4239972. Its totient is φ = 3768832.

The previous prime is 4004393. The next prime is 4004417. The reversal of 4004401 is 1044004.

It is a happy number.

4004401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 853776 = 1775^2 + 924^2 .

It is not a de Polignac number, because 4004401 - 2³ = 4004393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4014401) 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 3 ways as a sum of consecutive naturals, for example, 117760 + ... + 117793.

It is an arithmetic number, because the mean of its divisors is an integer number (1059993).

Almost surely, 2^4004401 is an apocalyptic number.

It is an amenable number.

4004401 is a deficient number, since it is larger than the sum of its proper divisors (235571).

4004401 is a wasteful number, since it uses less digits than its factorization.

4004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235570.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4004401 is about 2001.0999475289. The cubic root of 4004401 is about 158.7983017920.

Adding to 4004401 its reverse (1044004), we get a palindrome (5048405).

The spelling of 4004401 in words is "four million, four thousand, four hundred one".