23913216 has 108 divisors (see below), whose sum is σ = 70309512. Its totient is φ = 7815168.

The previous prime is 23913187. The next prime is 23913223. The reversal of 23913216 is 61231932.

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 23913216.

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, 223435 + ... + 223541.

It is an arithmetic number, because the mean of its divisors is an integer number (651014).

Almost surely, 2^23913216 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 23913216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35154756).

23913216 is an abundant number, since it is smaller than the sum of its proper divisors (46396296).

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

23913216 is a wasteful number, since it uses less digits than its factorization.

23913216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 209 counting only the distinct ones).

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

The square root of 23913216 is about 4890.1141090981. The cubic root of 23913216 is about 288.1018158529.

The spelling of 23913216 in words is "twenty-three million, nine hundred thirteen thousand, two hundred sixteen".