23443265 has 4 divisors (see below), whose sum is σ = 28131924. Its totient is φ = 18754608.

The previous prime is 23443261. The next prime is 23443307. The reversal of 23443265 is 56234432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15737089 + 7706176 = 3967^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443265 - 2² = 23443261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23443261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344322 + ... + 2344331.

It is an arithmetic number, because the mean of its divisors is an integer number (7032981).

Almost surely, 2^23443265 is an apocalyptic number.

It is an amenable number.

23443265 is a deficient number, since it is larger than the sum of its proper divisors (4688659).

23443265 is an equidigital number, since it uses as much as digits as its factorization.

23443265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688658.

The product of its digits is 17280, while the sum is 29.

The square root of 23443265 is about 4841.8245527900. The cubic root of 23443265 is about 286.2020228129.

Adding to 23443265 its reverse (56234432), we get a palindrome (79677697).

The spelling of 23443265 in words is "twenty-three million, four hundred forty-three thousand, two hundred sixty-five".