23452221 has 8 divisors (see below), whose sum is σ = 33675040. Its totient is φ = 14432112.

The previous prime is 23452207. The next prime is 23452229. The reversal of 23452221 is 12225432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23452221 - 2⁹ = 23451709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23452229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300631 + ... + 300708.

It is an arithmetic number, because the mean of its divisors is an integer number (4209380).

Almost surely, 2^23452221 is an apocalyptic number.

It is an amenable number.

23452221 is a deficient number, since it is larger than the sum of its proper divisors (10222819).

23452221 is a wasteful number, since it uses less digits than its factorization.

23452221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601355.

The product of its digits is 960, while the sum is 21.

The square root of 23452221 is about 4842.7493224407. The cubic root of 23452221 is about 286.2384639681.

Adding to 23452221 its reverse (12225432), we get a palindrome (35677653).

The spelling of 23452221 in words is "twenty-three million, four hundred fifty-two thousand, two hundred twenty-one".