23445423 has 8 divisors (see below), whose sum is σ = 34734000. Its totient is φ = 15630264.

The previous prime is 23445413. The next prime is 23445437. The reversal of 23445423 is 32454432.

23445423 is a `hidden beast` number, since 234 + 4 + 5 + 423 = 666.

It is not a de Polignac number, because 23445423 - 2¹³ = 23437231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 868349 = 23445423 / (2 + 3 + 4 + 4 + 5 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434148 + ... + 434201.

It is an arithmetic number, because the mean of its divisors is an integer number (4341750).

Almost surely, 2^23445423 is an apocalyptic number.

23445423 is a deficient number, since it is larger than the sum of its proper divisors (11288577).

23445423 is an equidigital number, since it uses as much as digits as its factorization.

23445423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868358 (or 868352 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 23445423 is about 4842.0473975375. The cubic root of 23445423 is about 286.2108043687.

Adding to 23445423 its reverse (32454432), we get a palindrome (55899855).

Subtracting 23445423 from its reverse (32454432), we obtain a palindrome (9009009).

The spelling of 23445423 in words is "twenty-three million, four hundred forty-five thousand, four hundred twenty-three".