2244400409 has 2 divisors, whose sum is σ = 2244400410. Its totient is φ = 2244400408.

The previous prime is 2244400399. The next prime is 2244400481. The reversal of 2244400409 is 9040044422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122629184 + 121771225 = 46072^2 + 11035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244400409 - 2²⁰ = 2243351833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2244400489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122200204 + 1122200205.

It is an arithmetic number, because the mean of its divisors is an integer number (1122200205).

Almost surely, 2^2244400409 is an apocalyptic number.

It is an amenable number.

2244400409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2244400409 is an equidigital number, since it uses as much as digits as its factorization.

2244400409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 2244400409 is about 47375.1032611012. The cubic root of 2244400409 is about 1309.2827511210.

The spelling of 2244400409 in words is "two billion, two hundred forty-four million, four hundred thousand, four hundred nine".