43144404401 has 12 divisors (see below), whose sum is σ = 50197607460. Its totient is φ = 36974125440.

The previous prime is 43144404361. The next prime is 43144404437. The reversal of 43144404401 is 10440444134.

It can be written as a sum of positive squares in 2 ways, for example, as 42911536801 + 232867600 = 207151^2 + 15260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43144404401 is a prime.

It is a super-2 number, since 2×43144404401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43144401401) 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 in 11 ways as a sum of consecutive naturals, for example, 198365 + ... + 354453.

It is an arithmetic number, because the mean of its divisors is an integer number (4183133955).

Almost surely, 2^43144404401 is an apocalyptic number.

It is an amenable number.

43144404401 is a deficient number, since it is larger than the sum of its proper divisors (7053203059).

43144404401 is a wasteful number, since it uses less digits than its factorization.

43144404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161744 (or 161737 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 43144404401 its reverse (10440444134), we get a palindrome (53584848535).

The spelling of 43144404401 in words is "forty-three billion, one hundred forty-four million, four hundred four thousand, four hundred one".