22038216 has 16 divisors (see below), whose sum is σ = 55095600. Its totient is φ = 7346064.

The previous prime is 22038167. The next prime is 22038227. The reversal of 22038216 is 61283022.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 918259 = 22038216 / (2 + 2 + 0 + 3 + 8 + 2 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459106 + ... + 459153.

It is an arithmetic number, because the mean of its divisors is an integer number (3443475).

Almost surely, 2^22038216 is an apocalyptic number.

It is an amenable number.

22038216 is an abundant number, since it is smaller than the sum of its proper divisors (33057384).

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

22038216 is a wasteful number, since it uses less digits than its factorization.

22038216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918268 (or 918264 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22038216 is about 4694.4878314892. The cubic root of 22038216 is about 280.3660857787.

The spelling of 22038216 in words is "twenty-two million, thirty-eight thousand, two hundred sixteen".