424339189 has 2 divisors, whose sum is σ = 424339190. Its totient is φ = 424339188.

The previous prime is 424339187. The next prime is 424339211. The reversal of 424339189 is 981933424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414448164 + 9891025 = 20358^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 424339189 - 2¹ = 424339187 is a prime.

Together with 424339187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424339183) 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, 212169594 + 212169595.

It is an arithmetic number, because the mean of its divisors is an integer number (212169595).

Almost surely, 2^424339189 is an apocalyptic number.

It is an amenable number.

424339189 is a deficient number, since it is larger than the sum of its proper divisors (1).

424339189 is an equidigital number, since it uses as much as digits as its factorization.

424339189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 424339189 is about 20599.4948724477. The cubic root of 424339189 is about 751.4574261922.

The spelling of 424339189 in words is "four hundred twenty-four million, three hundred thirty-nine thousand, one hundred eighty-nine".