420559423 has 16 divisors (see below), whose sum is σ = 445132800. Its totient is φ = 396807840.

The previous prime is 420559417. The next prime is 420559453. The reversal of 420559423 is 324955024.

It is a cyclic number.

It is not a de Polignac number, because 420559423 - 2⁹ = 420558911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420559453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202233 + ... + 204301.

It is an arithmetic number, because the mean of its divisors is an integer number (27820800).

Almost surely, 2^420559423 is an apocalyptic number.

420559423 is a deficient number, since it is larger than the sum of its proper divisors (24573377).

420559423 is a wasteful number, since it uses less digits than its factorization.

420559423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 420559423 is about 20507.5455137859. The cubic root of 420559423 is about 749.2195870373.

The spelling of 420559423 in words is "four hundred twenty million, five hundred fifty-nine thousand, four hundred twenty-three".