23421441 has 4 divisors (see below), whose sum is σ = 31228592. Its totient is φ = 15614292.

The previous prime is 23421421. The next prime is 23421443. The reversal of 23421441 is 14412432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23421441 - 2⁷ = 23421313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23421443) 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, 3903571 + ... + 3903576.

It is an arithmetic number, because the mean of its divisors is an integer number (7807148).

Almost surely, 2^23421441 is an apocalyptic number.

It is an amenable number.

23421441 is a deficient number, since it is larger than the sum of its proper divisors (7807151).

23421441 is an equidigital number, since it uses as much as digits as its factorization.

23421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807150.

The product of its digits is 768, while the sum is 21.

The square root of 23421441 is about 4839.5703321679. The cubic root of 23421441 is about 286.1131840474.

Adding to 23421441 its reverse (14412432), we get a palindrome (37833873).

Subtracting from 23421441 its reverse (14412432), we obtain a palindrome (9009009).

The spelling of 23421441 in words is "twenty-three million, four hundred twenty-one thousand, four hundred forty-one".