23400423 has 12 divisors (see below), whose sum is σ = 33948720. Its totient is φ = 15531936.

The previous prime is 23400413. The next prime is 23400427. The reversal of 23400423 is 32400432.

It is not a de Polignac number, because 23400423 - 2⁹ = 23399911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23400396 and 23400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3483 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (2829060).

Almost surely, 2^23400423 is an apocalyptic number.

23400423 is a deficient number, since it is larger than the sum of its proper divisors (10548297).

23400423 is a wasteful number, since it uses less digits than its factorization.

23400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11398 (or 11395 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23400423 is about 4837.3983710255. The cubic root of 23400423 is about 286.0275740770.

Adding to 23400423 its reverse (32400432), we get a palindrome (55800855).

Subtracting 23400423 from its reverse (32400432), we obtain a palindrome (9000009).

The spelling of 23400423 in words is "twenty-three million, four hundred thousand, four hundred twenty-three".