2394440189 has 2 divisors, whose sum is σ = 2394440190. Its totient is φ = 2394440188.

The previous prime is 2394440179. The next prime is 2394440197. The reversal of 2394440189 is 9810444932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1925717689 + 468722500 = 43883^2 + 21650^2 .

It is a cyclic number.

It is not a de Polignac number, because 2394440189 - 2⁸ = 2394439933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2394440159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1197220094 + 1197220095.

It is an arithmetic number, because the mean of its divisors is an integer number (1197220095).

Almost surely, 2^2394440189 is an apocalyptic number.

It is an amenable number.

2394440189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2394440189 is an equidigital number, since it uses as much as digits as its factorization.

2394440189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2394440189 is about 48933.0173706875. The cubic root of 2394440189 is about 1337.8312339320.

The spelling of 2394440189 in words is "two billion, three hundred ninety-four million, four hundred forty thousand, one hundred eighty-nine".