23319216 has 60 divisors (see below), whose sum is σ = 66262872. Its totient is φ = 7653888.

The previous prime is 23319203. The next prime is 23319227. The reversal of 23319216 is 61291332.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 23319216.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8440 + ... + 10856.

Almost surely, 2^23319216 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 23319216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33131436).

23319216 is an abundant number, since it is smaller than the sum of its proper divisors (42943656).

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

23319216 is a wasteful number, since it uses less digits than its factorization.

23319216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2489 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 23319216 is about 4828.9974114717. The cubic root of 23319216 is about 285.6963213467.

The spelling of 23319216 in words is "twenty-three million, three hundred nineteen thousand, two hundred sixteen".