426023 has 4 divisors (see below), whose sum is σ = 458808. Its totient is φ = 393240.

The previous prime is 426011. The next prime is 426061. The reversal of 426023 is 320624.

426023 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426023 - 2⁴ = 426007 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁹ + 2¹⁵ + 0 + 6² + 2¹⁷ + 3 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425992 and 426010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16373 + ... + 16398.

It is an arithmetic number, because the mean of its divisors is an integer number (114702).

2⁴²⁶⁰²³ is an apocalyptic number.

426023 is a deficient number, since it is larger than the sum of its proper divisors (32785).

426023 is a wasteful number, since it uses less digits than its factorization.

426023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32784.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 426023 is about 652.7043741235. The cubic root of 426023 is about 75.2450061623.

Adding to 426023 its reverse (320624), we get a palindrome (746647).

The spelling of 426023 in words is "four hundred twenty-six thousand, twenty-three".