5440442401 has 2 divisors, whose sum is σ = 5440442402. Its totient is φ = 5440442400.

The previous prime is 5440442363. The next prime is 5440442437. The reversal of 5440442401 is 1042440445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4212010000 + 1228432401 = 64900^2 + 35049^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440442401 - 2⁹ = 5440441889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5440442401.

It is not a weakly prime, because it can be changed into another prime (5440442461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720221200 + 2720221201.

It is an arithmetic number, because the mean of its divisors is an integer number (2720221201).

Almost surely, 2^5440442401 is an apocalyptic number.

It is an amenable number.

5440442401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440442401 is an equidigital number, since it uses as much as digits as its factorization.

5440442401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 5440442401 is about 73759.3546677301. The cubic root of 5440442401 is about 1758.7795431063.

Adding to 5440442401 its reverse (1042440445), we get a palindrome (6482882846).

The spelling of 5440442401 in words is "five billion, four hundred forty million, four hundred forty-two thousand, four hundred one".