44400000409 has 2 divisors, whose sum is σ = 44400000410. Its totient is φ = 44400000408.

The previous prime is 44400000349. The next prime is 44400000497. The reversal of 44400000409 is 90400000444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25561614400 + 18838386009 = 159880^2 + 137253^2 .

It is a cyclic number.

It is not a de Polignac number, because 44400000409 - 2³³ = 35810065817 is a prime.

It is not a weakly prime, because it can be changed into another prime (44400000499) 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 as a sum of consecutive naturals, namely, 22200000204 + 22200000205.

It is an arithmetic number, because the mean of its divisors is an integer number (22200000205).

Almost surely, 2^44400000409 is an apocalyptic number.

It is an amenable number.

44400000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

44400000409 is an equidigital number, since it uses as much as digits as its factorization.

44400000409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 44400000409 in words is "forty-four billion, four hundred million, four hundred nine", and thus it is an aban number.