23352216 has 64 divisors (see below), whose sum is σ = 62294400. Its totient is φ = 7273728.

The previous prime is 23352211. The next prime is 23352227. The reversal of 23352216 is 61225332.

It is a super-2 number, since 2×23352216² = 1090651984221312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23352211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37540 + ... + 38156.

It is an arithmetic number, because the mean of its divisors is an integer number (973350).

Almost surely, 2^23352216 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 23352216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31147200).

23352216 is an abundant number, since it is smaller than the sum of its proper divisors (38942184).

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

23352216 is a wasteful number, since it uses less digits than its factorization.

23352216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 724 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 23352216 is about 4832.4130618150. The cubic root of 23352216 is about 285.8310247717.

Adding to 23352216 its reverse (61225332), we get a palindrome (84577548).

The spelling of 23352216 in words is "twenty-three million, three hundred fifty-two thousand, two hundred sixteen".