23442251 has 4 divisors (see below), whose sum is σ = 26791152. Its totient is φ = 20093352.

The previous prime is 23442241. The next prime is 23442253. The reversal of 23442251 is 15224432.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23442251 - 2¹⁸ = 23180107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23442253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674440 + ... + 1674453.

It is an arithmetic number, because the mean of its divisors is an integer number (6697788).

Almost surely, 2^23442251 is an apocalyptic number.

23442251 is a deficient number, since it is larger than the sum of its proper divisors (3348901).

23442251 is an equidigital number, since it uses as much as digits as its factorization.

23442251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348900.

The product of its digits is 1920, while the sum is 23.

The square root of 23442251 is about 4841.7198390655. The cubic root of 23442251 is about 286.1978963536.

Adding to 23442251 its reverse (15224432), we get a palindrome (38666683).

The spelling of 23442251 in words is "twenty-three million, four hundred forty-two thousand, two hundred fifty-one".