216602224 has 60 divisors (see below), whose sum is σ = 444209416. Its totient is φ = 102301056.

The previous prime is 216602209. The next prime is 216602227. The reversal of 216602224 is 422206612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216602227) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1328767 + ... + 1328929.

Almost surely, 2^216602224 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 216602224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222104708).

216602224 is an abundant number, since it is smaller than the sum of its proper divisors (227607192).

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

216602224 is a wasteful number, since it uses less digits than its factorization.

216602224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 216602224 is about 14717.4122725430. The cubic root of 216602224 is about 600.5570973922.

Adding to 216602224 its reverse (422206612), we get a palindrome (638808836).

The spelling of 216602224 in words is "two hundred sixteen million, six hundred two thousand, two hundred twenty-four".