2440043331457 has 2 divisors, whose sum is σ = 2440043331458. Its totient is φ = 2440043331456.

The previous prime is 2440043331421. The next prime is 2440043331469. The reversal of 2440043331457 is 7541333400442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2144010491536 + 296032839921 = 1464244^2 + 544089^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440043331457 - 2¹⁵ = 2440043298689 is a prime.

It is a super-2 number, since 2×2440043331457² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2440043331487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220021665728 + 1220021665729.

It is an arithmetic number, because the mean of its divisors is an integer number (1220021665729).

Almost surely, 2^{2440043331457} is an apocalyptic number.

It is an amenable number.

2440043331457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440043331457 is an equidigital number, since it uses as much as digits as its factorization.

2440043331457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 40.

Adding to 2440043331457 its reverse (7541333400442), we get a palindrome (9981376731899).

The spelling of 2440043331457 in words is "two trillion, four hundred forty billion, forty-three million, three hundred thirty-one thousand, four hundred fifty-seven".