23022216 has 96 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 6188544.

The previous prime is 23022211. The next prime is 23022221. The reversal of 23022216 is 61222032.

It is an interprime number because it is at equal distance from previous prime (23022211) and next prime (23022221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23022211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7225 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^23022216 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 23022216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739520).

23022216 is an abundant number, since it is smaller than the sum of its proper divisors (52456824).

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

23022216 is a wasteful number, since it uses less digits than its factorization.

23022216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23022216 is about 4798.1471423874. The cubic root of 23022216 is about 284.4782327936.

Adding to 23022216 its reverse (61222032), we get a palindrome (84244248).

The spelling of 23022216 in words is "twenty-three million, twenty-two thousand, two hundred sixteen".