419128205 has 4 divisors (see below), whose sum is σ = 502953852. Its totient is φ = 335302560.

The previous prime is 419128159. The next prime is 419128211. The reversal of 419128205 is 502821914.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118417924 + 300710281 = 10882^2 + 17341^2 .

It is not a de Polignac number, because 419128205 - 2¹⁴ = 419111821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 41912816 + ... + 41912825.

It is an arithmetic number, because the mean of its divisors is an integer number (125738463).

Almost surely, 2^419128205 is an apocalyptic number.

It is an amenable number.

419128205 is a deficient number, since it is larger than the sum of its proper divisors (83825647).

419128205 is an equidigital number, since it uses as much as digits as its factorization.

419128205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83825646.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 419128205 is about 20472.6208629965. The cubic root of 419128205 is about 748.3687241207.

The spelling of 419128205 in words is "four hundred nineteen million, one hundred twenty-eight thousand, two hundred five".