23320512 has 42 divisors (see below), whose sum is σ = 66845688. Its totient is φ = 7773312.

The previous prime is 23320511. The next prime is 23320519. The reversal of 23320512 is 21502332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19668 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (1591564).

Almost surely, 2^23320512 is an apocalyptic number.

It is an amenable number.

23320512 is an abundant number, since it is smaller than the sum of its proper divisors (43525176).

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

23320512 is a wasteful number, since it uses less digits than its factorization.

23320512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40505 (or 40492 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23320512 is about 4829.1315989523. The cubic root of 23320512 is about 285.7016139142.

Adding to 23320512 its reverse (21502332), we get a palindrome (44822844).

It can be divided in two parts, 23320 and 512, that added together give a palindrome (23832).

The spelling of 23320512 in words is "twenty-three million, three hundred twenty thousand, five hundred twelve".