23345216 has 56 divisors (see below), whose sum is σ = 50292000. Its totient is φ = 10708992.

The previous prime is 23345209. The next prime is 23345219. The reversal of 23345216 is 61254332.

It is a super-2 number, since 2×23345216² = 1089998220173312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23345219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46535 + ... + 47033.

Almost surely, 2^23345216 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 23345216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25146000).

23345216 is an abundant number, since it is smaller than the sum of its proper divisors (26946784).

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

23345216 is a wasteful number, since it uses less digits than its factorization.

23345216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 561 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 23345216 is about 4831.6887316962. The cubic root of 23345216 is about 285.8024619274.

Adding to 23345216 its reverse (61254332), we get a palindrome (84599548).

The spelling of 23345216 in words is "twenty-three million, three hundred forty-five thousand, two hundred sixteen".