420461423 has 2 divisors, whose sum is σ = 420461424. Its totient is φ = 420461422.

The previous prime is 420461417. The next prime is 420461441. The reversal of 420461423 is 324164024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420461423 - 2²⁴ = 403684207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420461392 and 420461401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420461453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210230711 + 210230712.

It is an arithmetic number, because the mean of its divisors is an integer number (210230712).

Almost surely, 2^420461423 is an apocalyptic number.

420461423 is a deficient number, since it is larger than the sum of its proper divisors (1).

420461423 is an equidigital number, since it uses as much as digits as its factorization.

420461423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 420461423 is about 20505.1560101356. The cubic root of 420461423 is about 749.1613873954.

The spelling of 420461423 in words is "four hundred twenty million, four hundred sixty-one thousand, four hundred twenty-three".