23423745 has 16 divisors (see below), whose sum is σ = 37844352. Its totient is φ = 12370560.

The previous prime is 23423711. The next prime is 23423747. The reversal of 23423745 is 54732432.

It is not a de Polignac number, because 23423745 - 2⁸ = 23423489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23423747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6036 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (2365272).

Almost surely, 2^23423745 is an apocalyptic number.

It is an amenable number.

23423745 is a deficient number, since it is larger than the sum of its proper divisors (14420607).

23423745 is a wasteful number, since it uses less digits than its factorization.

23423745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15272.

The product of its digits is 20160, while the sum is 30.

The square root of 23423745 is about 4839.8083639748. The cubic root of 23423745 is about 286.1225655249.

The spelling of 23423745 in words is "twenty-three million, four hundred twenty-three thousand, seven hundred forty-five".