1440306542401 has 2 divisors, whose sum is σ = 1440306542402. Its totient is φ = 1440306542400.

The previous prime is 1440306542393. The next prime is 1440306542449. The reversal of 1440306542401 is 1042456030441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822424079376 + 617882463025 = 906876^2 + 786055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440306542401 - 2³ = 1440306542393 is a prime.

It is a super-2 number, since 2×1440306542401² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440306542201) 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, 720153271200 + 720153271201.

It is an arithmetic number, because the mean of its divisors is an integer number (720153271201).

Almost surely, 2^{1440306542401} is an apocalyptic number.

It is an amenable number.

1440306542401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440306542401 is an equidigital number, since it uses as much as digits as its factorization.

1440306542401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 1440306542401 in words is "one trillion, four hundred forty billion, three hundred six million, five hundred forty-two thousand, four hundred one".