43043021441 has 12 divisors (see below), whose sum is σ = 50109371460. Its totient is φ = 36865342080.

The previous prime is 43043021423. The next prime is 43043021447. The reversal of 43043021441 is 14412034034.

It can be written as a sum of positive squares in 2 ways, for example, as 37218126400 + 5824895041 = 192920^2 + 76321^2 .

It is not a de Polignac number, because 43043021441 - 2¹⁸ = 43042759297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43043021441.

It is not an unprimeable number, because it can be changed into a prime (43043021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277580 + ... + 403901.

It is an arithmetic number, because the mean of its divisors is an integer number (4175780955).

Almost surely, 2^43043021441 is an apocalyptic number.

It is an amenable number.

43043021441 is a deficient number, since it is larger than the sum of its proper divisors (7066350019).

43043021441 is a wasteful number, since it uses less digits than its factorization.

43043021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682784 (or 682777 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43043021441 its reverse (14412034034), we get a palindrome (57455055475).

The spelling of 43043021441 in words is "forty-three billion, forty-three million, twenty-one thousand, four hundred forty-one".