4020440204441 has 4 divisors (see below), whose sum is σ = 4020444373632. Its totient is φ = 4020436035252.

The previous prime is 4020440204401. The next prime is 4020440204453. The reversal of 4020440204441 is 1444020440204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020440204441 is a prime.

It is a super-2 number, since 2×4020440204441² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020440204401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187040 + ... + 2841806.

It is an arithmetic number, because the mean of its divisors is an integer number (1005111093408).

Almost surely, 2^{4020440204441} is an apocalyptic number.

It is an amenable number.

4020440204441 is a deficient number, since it is larger than the sum of its proper divisors (4169191).

4020440204441 is a wasteful number, since it uses less digits than its factorization.

4020440204441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169190.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 4020440204441 its reverse (1444020440204), we get a palindrome (5464460644645).

The spelling of 4020440204441 in words is "four trillion, twenty billion, four hundred forty million, two hundred four thousand, four hundred forty-one".