23041421 has 16 divisors (see below), whose sum is σ = 25960704. Its totient is φ = 20309184.

The previous prime is 23041393. The next prime is 23041427. The reversal of 23041421 is 12414032.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23041421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23041421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23041427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25835 + ... + 26711.

It is an arithmetic number, because the mean of its divisors is an integer number (1622544).

Almost surely, 2^23041421 is an apocalyptic number.

It is an amenable number.

23041421 is a deficient number, since it is larger than the sum of its proper divisors (2919283).

23041421 is a wasteful number, since it uses less digits than its factorization.

23041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 23041421 is about 4800.1480185511. The cubic root of 23041421 is about 284.5573141757.

Adding to 23041421 its reverse (12414032), we get a palindrome (35455453).

The spelling of 23041421 in words is "twenty-three million, forty-one thousand, four hundred twenty-one".