419191943 has 2 divisors, whose sum is σ = 419191944. Its totient is φ = 419191942.

The previous prime is 419191921. The next prime is 419191957. The reversal of 419191943 is 349191914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 419191943 - 2²⁰ = 418143367 is a prime.

It is a super-2 number, since 2×419191943² = 351443770152230498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 419191943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419191963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209595971 + 209595972.

It is an arithmetic number, because the mean of its divisors is an integer number (209595972).

Almost surely, 2^419191943 is an apocalyptic number.

419191943 is a deficient number, since it is larger than the sum of its proper divisors (1).

419191943 is an equidigital number, since it uses as much as digits as its factorization.

419191943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 419191943 is about 20474.1774682159. The cubic root of 419191943 is about 748.4066577072.

The spelling of 419191943 in words is "four hundred nineteen million, one hundred ninety-one thousand, nine hundred forty-three".