23355216 has 60 divisors (see below), whose sum is σ = 67794272. Its totient is φ = 7783776.

The previous prime is 23355191. The next prime is 23355247. The reversal of 23355216 is 61255332.

It is a super-2 number, since 2×23355216² = 1090932228813312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23355216.

It is a congruent number.

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, 885 + ... + 6891.

Almost surely, 2^23355216 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 23355216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33897136).

23355216 is an abundant number, since it is smaller than the sum of its proper divisors (44439056).

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

23355216 is an equidigital number, since it uses as much as digits as its factorization.

23355216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030 (or 6012 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 23355216 is about 4832.7234557752. The cubic root of 23355216 is about 285.8432642433.

The spelling of 23355216 in words is "twenty-three million, three hundred fifty-five thousand, two hundred sixteen".