23013636 has 24 divisors (see below), whose sum is σ = 56525280. Its totient is φ = 7267392.

The previous prime is 23013611. The next prime is 23013637. The reversal of 23013636 is 63631032.

It is not an unprimeable number, because it can be changed into a prime (23013637) 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, 50241 + ... + 50696.

It is an arithmetic number, because the mean of its divisors is an integer number (2355220).

Almost surely, 2^23013636 is an apocalyptic number.

It is an amenable number.

23013636 is an abundant number, since it is smaller than the sum of its proper divisors (33511644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23013636 is a wasteful number, since it uses less digits than its factorization.

23013636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100963 (or 100961 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23013636 is about 4797.2529639368. The cubic root of 23013636 is about 284.4428882881.

Adding to 23013636 its reverse (63631032), we get a palindrome (86644668).

The spelling of 23013636 in words is "twenty-three million, thirteen thousand, six hundred thirty-six".