4020444404441 has 16 divisors (see below), whose sum is σ = 4329654508800. Its totient is φ = 3719330212608.

The previous prime is 4020444404419. The next prime is 4020444404453. The reversal of 4020444404441 is 1444044440204.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020444404441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020444404401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7590275 + ... + 8102663.

It is an arithmetic number, because the mean of its divisors is an integer number (270603406800).

Almost surely, 2^{4020444404441} is an apocalyptic number.

It is an amenable number.

4020444404441 is a deficient number, since it is larger than the sum of its proper divisors (309210104359).

4020444404441 is a wasteful number, since it uses less digits than its factorization.

4020444404441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520288.

The product of its (nonzero) digits is 131072, while the sum is 35.

Adding to 4020444404441 its reverse (1444044440204), we get a palindrome (5464488844645).

The spelling of 4020444404441 in words is "four trillion, twenty billion, four hundred forty-four million, four hundred four thousand, four hundred forty-one".