2190343439 has 2 divisors, whose sum is σ = 2190343440. Its totient is φ = 2190343438.

The previous prime is 2190343433. The next prime is 2190343447. The reversal of 2190343439 is 9343430912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2190343439 - 2⁴ = 2190343423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190343433) 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, 1095171719 + 1095171720.

It is an arithmetic number, because the mean of its divisors is an integer number (1095171720).

Almost surely, 2^2190343439 is an apocalyptic number.

2190343439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190343439 is an equidigital number, since it uses as much as digits as its factorization.

2190343439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 2190343439 is about 46801.1051044738. The cubic root of 2190343439 is about 1298.6857406089.

The spelling of 2190343439 in words is "two billion, one hundred ninety million, three hundred forty-three thousand, four hundred thirty-nine".