420414469 has 2 divisors, whose sum is σ = 420414470. Its totient is φ = 420414468.

The previous prime is 420414457. The next prime is 420414487. The reversal of 420414469 is 964414024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357021025 + 63393444 = 18895^2 + 7962^2 .

It is a cyclic number.

It is not a de Polignac number, because 420414469 - 2⁷ = 420414341 is a prime.

It is a super-2 number, since 2×420414469² = 353496651489103922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420411469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210207234 + 210207235.

It is an arithmetic number, because the mean of its divisors is an integer number (210207235).

Almost surely, 2^420414469 is an apocalyptic number.

It is an amenable number.

420414469 is a deficient number, since it is larger than the sum of its proper divisors (1).

420414469 is an equidigital number, since it uses as much as digits as its factorization.

420414469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 420414469 is about 20504.0110466221. The cubic root of 420414469 is about 749.1334994360.

The spelling of 420414469 in words is "four hundred twenty million, four hundred fourteen thousand, four hundred sixty-nine".