1440443422057 has 2 divisors, whose sum is σ = 1440443422058. Its totient is φ = 1440443422056.

The previous prime is 1440443421979. The next prime is 1440443422087. The reversal of 1440443422057 is 7502243440441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1357996339561 + 82447082496 = 1165331^2 + 287136^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440443422057 - 2²³ = 1440435033449 is a prime.

It is a super-2 number, since 2×1440443422057² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440443422087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720221711028 + 720221711029.

It is an arithmetic number, because the mean of its divisors is an integer number (720221711029).

Almost surely, 2^{1440443422057} is an apocalyptic number.

It is an amenable number.

1440443422057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440443422057 is an equidigital number, since it uses as much as digits as its factorization.

1440443422057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 40.

Adding to 1440443422057 its reverse (7502243440441), we get a palindrome (8942686862498).

The spelling of 1440443422057 in words is "one trillion, four hundred forty billion, four hundred forty-three million, four hundred twenty-two thousand, fifty-seven".