420895219 has 2 divisors, whose sum is σ = 420895220. Its totient is φ = 420895218.

The previous prime is 420895157. The next prime is 420895259. The reversal of 420895219 is 912598024.

It is an a-pointer prime, because the next prime (420895259) can be obtained adding 420895219 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420895219 - 2¹¹ = 420893171 is a prime.

It is a super-2 number, since 2×420895219² = 354305570754115922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420895259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210447609 + 210447610.

It is an arithmetic number, because the mean of its divisors is an integer number (210447610).

Almost surely, 2^420895219 is an apocalyptic number.

420895219 is a deficient number, since it is larger than the sum of its proper divisors (1).

420895219 is an equidigital number, since it uses as much as digits as its factorization.

420895219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 420895219 is about 20515.7310130543. The cubic root of 420895219 is about 749.4189389774.

The spelling of 420895219 in words is "four hundred twenty million, eight hundred ninety-five thousand, two hundred nineteen".