23242445 has 4 divisors (see below), whose sum is σ = 27890940. Its totient is φ = 18593952.

The previous prime is 23242421. The next prime is 23242447. The reversal of 23242445 is 54424232.

It is a happy number.

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 2866249 + 20376196 = 1693^2 + 4514^2 .

It is a cyclic number.

It is not a de Polignac number, because 23242445 - 2⁸ = 23242189 is a prime.

It is a super-2 number, since 2×23242445² = 1080422499156050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23242447) 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, 2324240 + ... + 2324249.

It is an arithmetic number, because the mean of its divisors is an integer number (6972735).

Almost surely, 2^23242445 is an apocalyptic number.

It is an amenable number.

23242445 is a deficient number, since it is larger than the sum of its proper divisors (4648495).

23242445 is an equidigital number, since it uses as much as digits as its factorization.

23242445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648494.

The product of its digits is 7680, while the sum is 26.

The square root of 23242445 is about 4821.0418998387. The cubic root of 23242445 is about 285.3824556529.

Adding to 23242445 its reverse (54424232), we get a palindrome (77666677).

The spelling of 23242445 in words is "twenty-three million, two hundred forty-two thousand, four hundred forty-five".