1440052400441 has 4 divisors (see below), whose sum is σ = 1440054890484. Its totient is φ = 1440049910400.

The previous prime is 1440052400351. The next prime is 1440052400491. The reversal of 1440052400441 is 1440042500441.

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 1135545984400 + 304506416041 = 1065620^2 + 551821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440052400441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1440052400491) 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 in 3 ways as a sum of consecutive naturals, for example, 124961 + ... + 1701681.

It is an arithmetic number, because the mean of its divisors is an integer number (360013722621).

Almost surely, 2^{1440052400441} is an apocalyptic number.

It is an amenable number.

1440052400441 is a deficient number, since it is larger than the sum of its proper divisors (2490043).

1440052400441 is an equidigital number, since it uses as much as digits as its factorization.

1440052400441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490042.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 1440052400441 its reverse (1440042500441), we get a palindrome (2880094900882).

The spelling of 1440052400441 in words is "one trillion, four hundred forty billion, fifty-two million, four hundred thousand, four hundred forty-one".