23681808 has 60 divisors (see below), whose sum is σ = 68742128. Its totient is φ = 7892640.

The previous prime is 23681807. The next prime is 23681821. The reversal of 23681808 is 80818632.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23681807) 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, 843 + ... + 6933.

Almost surely, 2^23681808 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 23681808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34371064).

23681808 is an abundant number, since it is smaller than the sum of its proper divisors (45060320).

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

23681808 is an equidigital number, since it uses as much as digits as its factorization.

23681808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6096 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 23681808 is about 4866.3957915484. The cubic root of 23681808 is about 287.1694823034.

The spelling of 23681808 in words is "twenty-three million, six hundred eighty-one thousand, eight hundred eight".