419885189 has 2 divisors, whose sum is σ = 419885190. Its totient is φ = 419885188.

The previous prime is 419885117. The next prime is 419885197. The reversal of 419885189 is 981588914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415752100 + 4133089 = 20390^2 + 2033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-419885189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 419885189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419885489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209942594 + 209942595.

It is an arithmetic number, because the mean of its divisors is an integer number (209942595).

Almost surely, 2^419885189 is an apocalyptic number.

It is an amenable number.

419885189 is a deficient number, since it is larger than the sum of its proper divisors (1).

419885189 is an equidigital number, since it uses as much as digits as its factorization.

419885189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 53.

The square root of 419885189 is about 20491.1002388842. The cubic root of 419885189 is about 748.8189940167.

The spelling of 419885189 in words is "four hundred nineteen million, eight hundred eighty-five thousand, one hundred eighty-nine".