23305856 has 96 divisors (see below), whose sum is σ = 57405600. Its totient is φ = 9206784.

The previous prime is 23305853. The next prime is 23305873. The reversal of 23305856 is 65850332.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (23305853) 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 11 ways as a sum of consecutive naturals, for example, 629870 + ... + 629906.

It is an arithmetic number, because the mean of its divisors is an integer number (597975).

Almost surely, 2^23305856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23305856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28702800).

23305856 is an abundant number, since it is smaller than the sum of its proper divisors (34099744).

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

23305856 is an equidigital number, since it uses as much as digits as its factorization.

23305856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 23305856 is about 4827.6139033688. The cubic root of 23305856 is about 285.6417507298.

The spelling of 23305856 in words is "twenty-three million, three hundred five thousand, eight hundred fifty-six".