22343216 has 30 divisors (see below), whose sum is σ = 50359500. Its totient is φ = 9575328.

The previous prime is 22343213. The next prime is 22343231. The reversal of 22343216 is 61234322.

It is a junction number, because it is equal to n+sod(n) for n = 22343191 and 22343200.

It is not an unprimeable number, because it can be changed into a prime (22343213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13466 + ... + 15033.

It is an arithmetic number, because the mean of its divisors is an integer number (1678650).

Almost surely, 2^22343216 is an apocalyptic number.

It is an amenable number.

22343216 is an abundant number, since it is smaller than the sum of its proper divisors (28016284).

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

22343216 is a wasteful number, since it uses less digits than its factorization.

22343216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28521 (or 28508 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 22343216 is about 4726.8611149472. The cubic root of 22343216 is about 281.6535490236.

Adding to 22343216 its reverse (61234322), we get a palindrome (83577538).

The spelling of 22343216 in words is "twenty-two million, three hundred forty-three thousand, two hundred sixteen".