22218714 has 48 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 6013440.

The previous prime is 22218697. The next prime is 22218719. The reversal of 22218714 is 41781222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22218719) 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 23 ways as a sum of consecutive naturals, for example, 2247 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (1206660).

Almost surely, 2^22218714 is an apocalyptic number.

22218714 is an abundant number, since it is smaller than the sum of its proper divisors (35700966).

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

22218714 is a wasteful number, since it uses less digits than its factorization.

22218714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9315 (or 9312 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 22218714 is about 4713.6730900647. The cubic root of 22218714 is about 281.1294262425.

Adding to 22218714 its reverse (41781222), we get a palindrome (63999936).

The spelling of 22218714 in words is "twenty-two million, two hundred eighteen thousand, seven hundred fourteen".