4000441 has 4 divisors (see below), whose sum is σ = 4066084. Its totient is φ = 3934800.

The previous prime is 4000439. The next prime is 4000489. The reversal of 4000441 is 1440004.

It is a happy number.

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 115600 + 3884841 = 340^2 + 1971^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000441 - 2¹ = 4000439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32730 + ... + 32851.

It is an arithmetic number, because the mean of its divisors is an integer number (1016521).

Almost surely, 2^4000441 is an apocalyptic number.

It is an amenable number.

4000441 is a deficient number, since it is larger than the sum of its proper divisors (65643).

4000441 is an equidigital number, since it uses as much as digits as its factorization.

4000441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65642.

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

The square root of 4000441 is about 2000.1102469614. The cubic root of 4000441 is about 158.7459386813.

Adding to 4000441 its reverse (1440004), we get a palindrome (5440445).

The spelling of 4000441 in words is "four million, four hundred forty-one", and thus it is an aban number.