44004444413 has 2 divisors, whose sum is σ = 44004444414. Its totient is φ = 44004444412.

The previous prime is 44004444401. The next prime is 44004444431. The reversal of 44004444413 is 31444440044.

Together with next prime (44004444431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36587273284 + 7417171129 = 191278^2 + 86123^2 .

It is a cyclic number.

It is not a de Polignac number, because 44004444413 - 2⁶ = 44004444349 is a prime.

It is a super-2 number, since 2×44004444413² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44004444413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44004444713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22002222206 + 22002222207.

It is an arithmetic number, because the mean of its divisors is an integer number (22002222207).

Almost surely, 2^44004444413 is an apocalyptic number.

It is an amenable number.

44004444413 is a deficient number, since it is larger than the sum of its proper divisors (1).

44004444413 is an equidigital number, since it uses as much as digits as its factorization.

44004444413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 44004444413 its reverse (31444440044), we get a palindrome (75448884457).

The spelling of 44004444413 in words is "forty-four billion, four million, four hundred forty-four thousand, four hundred thirteen".