23005536 has 24 divisors (see below), whose sum is σ = 60389784. Its totient is φ = 7668480.

The previous prime is 23005531. The next prime is 23005537. The reversal of 23005536 is 63550032.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23005531) 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 3 ways as a sum of consecutive naturals, for example, 119725 + ... + 119916.

It is an arithmetic number, because the mean of its divisors is an integer number (2516241).

Almost surely, 2^23005536 is an apocalyptic number.

It is an amenable number.

23005536 is an abundant number, since it is smaller than the sum of its proper divisors (37384248).

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

23005536 is a wasteful number, since it uses less digits than its factorization.

23005536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239654 (or 239646 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 23005536 is about 4796.4086564846. The cubic root of 23005536 is about 284.4095130353.

Adding to 23005536 its reverse (63550032), we get a palindrome (86555568).

The spelling of 23005536 in words is "twenty-three million, five thousand, five hundred thirty-six".