422403423 has 16 divisors (see below), whose sum is σ = 608133120. Its totient is φ = 259252704.

The previous prime is 422403413. The next prime is 422403493. The reversal of 422403423 is 324304224.

It is not a de Polignac number, because 422403423 - 2⁴ = 422403407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422403393 and 422403402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422403413) 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, 798 + ... + 29076.

It is an arithmetic number, because the mean of its divisors is an integer number (38008320).

Almost surely, 2^422403423 is an apocalyptic number.

422403423 is a deficient number, since it is larger than the sum of its proper divisors (185729697).

422403423 is a wasteful number, since it uses less digits than its factorization.

422403423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28678.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 422403423 is about 20552.4554007544. The cubic root of 422403423 is about 750.3130089046.

Adding to 422403423 its reverse (324304224), we get a palindrome (746707647).

The spelling of 422403423 in words is "four hundred twenty-two million, four hundred three thousand, four hundred twenty-three".