23668736 has 96 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 9289728.

The previous prime is 23668681. The next prime is 23668739. The reversal of 23668736 is 63786632.

It is a junction number, because it is equal to n+sod(n) for n = 23668693 and 23668702.

It is not an unprimeable number, because it can be changed into a prime (23668739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186305 + ... + 186431.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^23668736 is an apocalyptic number.

23668736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23668736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

23668736 is an abundant number, since it is smaller than the sum of its proper divisors (35037184).

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

23668736 is a wasteful number, since it uses less digits than its factorization.

23668736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 149 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 23668736 is about 4865.0525177021. The cubic root of 23668736 is about 287.1166348409.

The spelling of 23668736 in words is "twenty-three million, six hundred sixty-eight thousand, seven hundred thirty-six".