426266219 has 2 divisors, whose sum is σ = 426266220. Its totient is φ = 426266218.

The previous prime is 426266207. The next prime is 426266257. The reversal of 426266219 is 912662624.

It is an a-pointer prime, because the next prime (426266257) can be obtained adding 426266219 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426266219 - 2²⁰ = 425217643 is a prime.

It is a super-2 number, since 2×426266219² = 363405778921111922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426266119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213133109 + 213133110.

It is an arithmetic number, because the mean of its divisors is an integer number (213133110).

Almost surely, 2^426266219 is an apocalyptic number.

426266219 is a deficient number, since it is larger than the sum of its proper divisors (1).

426266219 is an equidigital number, since it uses as much as digits as its factorization.

426266219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 426266219 is about 20646.2156096462. The cubic root of 426266219 is about 752.5932270820.

The spelling of 426266219 in words is "four hundred twenty-six million, two hundred sixty-six thousand, two hundred nineteen".