2244440389 has 2 divisors, whose sum is σ = 2244440390. Its totient is φ = 2244440388.

The previous prime is 2244440383. The next prime is 2244440431. The reversal of 2244440389 is 9830444422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2221236900 + 23203489 = 47130^2 + 4817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244440389 - 2³ = 2244440381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2244440381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122220194 + 1122220195.

It is an arithmetic number, because the mean of its divisors is an integer number (1122220195).

Almost surely, 2^2244440389 is an apocalyptic number.

It is an amenable number.

2244440389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2244440389 is an equidigital number, since it uses as much as digits as its factorization.

2244440389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 2244440389 is about 47375.5252108090. The cubic root of 2244440389 is about 1309.2905252558.

The spelling of 2244440389 in words is "two billion, two hundred forty-four million, four hundred forty thousand, three hundred eighty-nine".