23501330 has 16 divisors (see below), whose sum is σ = 42574680. Its totient is φ = 9340032.

The previous prime is 23501297. The next prime is 23501333. The reversal of 23501330 is 3310532.

It can be written as a sum of positive squares in 4 ways, for example, as 8048569 + 15452761 = 2837^2 + 3931^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23501299 and 23501308.

It is not an unprimeable number, because it can be changed into a prime (23501333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5915 + ... + 9054.

Almost surely, 2^23501330 is an apocalyptic number.

23501330 is a deficient number, since it is larger than the sum of its proper divisors (19073350).

23501330 is a wasteful number, since it uses less digits than its factorization.

23501330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15133.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 23501330 is about 4847.8170345012. The cubic root of 23501330 is about 286.4381193215.

Adding to 23501330 its reverse (3310532), we get a palindrome (26811862).

The spelling of 23501330 in words is "twenty-three million, five hundred one thousand, three hundred thirty".