426643023 has 16 divisors (see below), whose sum is σ = 573737472. Its totient is φ = 282000000.

The previous prime is 426643013. The next prime is 426643037. The reversal of 426643023 is 320346624.

It is a happy number.

It is not a de Polignac number, because 426643023 - 2⁶ = 426642959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426643013) 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, 180298 + ... + 182648.

It is an arithmetic number, because the mean of its divisors is an integer number (35858592).

Almost surely, 2^426643023 is an apocalyptic number.

426643023 is a deficient number, since it is larger than the sum of its proper divisors (147094449).

426643023 is a wasteful number, since it uses less digits than its factorization.

426643023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 426643023 is about 20655.3388497986. The cubic root of 426643023 is about 752.8149168841.

Adding to 426643023 its reverse (320346624), we get a palindrome (746989647).

The spelling of 426643023 in words is "four hundred twenty-six million, six hundred forty-three thousand, twenty-three".