420589219 has 2 divisors, whose sum is σ = 420589220. Its totient is φ = 420589218.

The previous prime is 420589199. The next prime is 420589237. The reversal of 420589219 is 912985024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420589219 - 2¹³ = 420581027 is a prime.

It is a super-2 number, since 2×420589219² = 353790582278059922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420589259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210294609 + 210294610.

It is an arithmetic number, because the mean of its divisors is an integer number (210294610).

Almost surely, 2^420589219 is an apocalyptic number.

420589219 is a deficient number, since it is larger than the sum of its proper divisors (1).

420589219 is an equidigital number, since it uses as much as digits as its factorization.

420589219 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 420589219 is about 20508.2719652339. The cubic root of 420589219 is about 749.2372803115.

The spelling of 420589219 in words is "four hundred twenty million, five hundred eighty-nine thousand, two hundred nineteen".