23816320 has 128 divisors (see below), whose sum is σ = 66096000. Its totient is φ = 8110080.

The previous prime is 23816297. The next prime is 23816321. The reversal of 23816320 is 2361832.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (23816321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119581 + ... + 119779.

It is an arithmetic number, because the mean of its divisors is an integer number (516375).

Almost surely, 2^23816320 is an apocalyptic number.

23816320 is a gapful number since it is divisible by the number (20) 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 23816320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33048000).

23816320 is an abundant number, since it is smaller than the sum of its proper divisors (42279680).

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

23816320 is a wasteful number, since it uses less digits than its factorization.

23816320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 23816320 is about 4880.1967173465. The cubic root of 23816320 is about 287.7121609774.

The spelling of 23816320 in words is "twenty-three million, eight hundred sixteen thousand, three hundred twenty".