22218696 has 48 divisors (see below), whose sum is σ = 60400860. Its totient is φ = 7378560.

The previous prime is 22218689. The next prime is 22218697. The reversal of 22218696 is 69681222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22184100 + 34596 = 4710^2 + 186^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 22218696.

It is not an unprimeable number, because it can be changed into a prime (22218697) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 29946 + ... + 30678.

Almost surely, 2^22218696 is an apocalyptic number.

It is an amenable number.

22218696 is an abundant number, since it is smaller than the sum of its proper divisors (38182164).

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

22218696 is a wasteful number, since it uses less digits than its factorization.

22218696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1159 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22218696 is about 4713.6711807253. The cubic root of 22218696 is about 281.1293503256.

The spelling of 22218696 in words is "twenty-two million, two hundred eighteen thousand, six hundred ninety-six".