22413216 has 48 divisors (see below), whose sum is σ = 67241664. Its totient is φ = 6403584.

The previous prime is 22413187. The next prime is 22413221. The reversal of 22413216 is 61231422.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22413192 and 22413201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16005 + ... + 17348.

It is an arithmetic number, because the mean of its divisors is an integer number (1400868).

Almost surely, 2^22413216 is an apocalyptic number.

It is an amenable number.

22413216 is an abundant number, since it is smaller than the sum of its proper divisors (44828448).

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

22413216 is a wasteful number, since it uses less digits than its factorization.

22413216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33373 (or 33365 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 22413216 is about 4734.2598154305. The cubic root of 22413216 is about 281.9473771332.

Adding to 22413216 its reverse (61231422), we get a palindrome (83644638).

The spelling of 22413216 in words is "twenty-two million, four hundred thirteen thousand, two hundred sixteen".