43242040441 has 2 divisors, whose sum is σ = 43242040442. Its totient is φ = 43242040440.

The previous prime is 43242040427. The next prime is 43242040483. The reversal of 43242040441 is 14404024234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30721325625 + 12520714816 = 175275^2 + 111896^2 .

It is a cyclic number.

It is not a de Polignac number, because 43242040441 - 2¹⁵ = 43242007673 is a prime.

It is not a weakly prime, because it can be changed into another prime (43242041441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621020220 + 21621020221.

It is an arithmetic number, because the mean of its divisors is an integer number (21621020221).

Almost surely, 2^43242040441 is an apocalyptic number.

It is an amenable number.

43242040441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242040441 is an equidigital number, since it uses as much as digits as its factorization.

43242040441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 43242040441 its reverse (14404024234), we get a palindrome (57646064675).

The spelling of 43242040441 in words is "forty-three billion, two hundred forty-two million, forty thousand, four hundred forty-one".