1404441044021 has 2 divisors, whose sum is σ = 1404441044022. Its totient is φ = 1404441044020.

The previous prime is 1404441043979. The next prime is 1404441044057. The reversal of 1404441044021 is 1204401444041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859169563396 + 545271480625 = 926914^2 + 738425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404441044021 - 2¹⁰ = 1404441042997 is a prime.

It is a super-2 number, since 2×1404441044021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404441044521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702220522010 + 702220522011.

It is an arithmetic number, because the mean of its divisors is an integer number (702220522011).

Almost surely, 2^{1404441044021} is an apocalyptic number.

It is an amenable number.

1404441044021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404441044021 is an equidigital number, since it uses as much as digits as its factorization.

1404441044021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 1404441044021 its reverse (1204401444041), we get a palindrome (2608842488062).

The spelling of 1404441044021 in words is "one trillion, four hundred four billion, four hundred forty-one million, forty-four thousand, twenty-one".