22032216 has 32 divisors (see below), whose sum is σ = 61201200. Its totient is φ = 7344000.

The previous prime is 22032169. The next prime is 22032233. The reversal of 22032216 is 61223022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50785 + ... + 51216.

Almost surely, 2^22032216 is an apocalyptic number.

It is an amenable number.

22032216 is an abundant number, since it is smaller than the sum of its proper divisors (39168984).

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

22032216 is a wasteful number, since it uses less digits than its factorization.

22032216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102016 (or 102006 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22032216 is about 4693.8487406392. The cubic root of 22032216 is about 280.3406398412.

Adding to 22032216 its reverse (61223022), we get a palindrome (83255238).

The spelling of 22032216 in words is "twenty-two million, thirty-two thousand, two hundred sixteen".