43440442232441 has 2 divisors, whose sum is σ = 43440442232442. Its totient is φ = 43440442232440.

The previous prime is 43440442232419. The next prime is 43440442232449. The reversal of 43440442232441 is 14423224404434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25214407746025 + 18226034486416 = 5021395^2 + 4269196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43440442232441 is a prime.

It is a super-2 number, since 2×43440442232441² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43440442232449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720221116220 + 21720221116221.

It is an arithmetic number, because the mean of its divisors is an integer number (21720221116221).

Almost surely, 2^{43440442232441} is an apocalyptic number.

It is an amenable number.

43440442232441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43440442232441 is an equidigital number, since it uses as much as digits as its factorization.

43440442232441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1179648, while the sum is 41.

Adding to 43440442232441 its reverse (14423224404434), we get a palindrome (57863666636875).

The spelling of 43440442232441 in words is "forty-three trillion, four hundred forty billion, four hundred forty-two million, two hundred thirty-two thousand, four hundred forty-one".