23043216 has 40 divisors (see below), whose sum is σ = 68033344. Its totient is φ = 6583680.

The previous prime is 23043203. The next prime is 23043221. The reversal of 23043216 is 61234032.

It is a happy number.

It is a super-3 number, since 3×23043216³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23043192 and 23043201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33955 + ... + 34626.

Almost surely, 2^23043216 is an apocalyptic number.

It is an amenable number.

23043216 is an abundant number, since it is smaller than the sum of its proper divisors (44990128).

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

23043216 is a wasteful number, since it uses less digits than its factorization.

23043216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68599 (or 68593 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23043216 is about 4800.3349883107. The cubic root of 23043216 is about 284.5647032905.

Adding to 23043216 its reverse (61234032), we get a palindrome (84277248).

The spelling of 23043216 in words is "twenty-three million, forty-three thousand, two hundred sixteen".