22240706 has 4 divisors (see below), whose sum is σ = 33361062. Its totient is φ = 11120352.

The previous prime is 22240703. The next prime is 22240711. The reversal of 22240706 is 60704222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 235225 = 4691^2 + 485^2 .

It is not an unprimeable number, because it can be changed into a prime (22240703) 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 as a sum of consecutive naturals, namely, 5560175 + ... + 5560178.

Almost surely, 2^22240706 is an apocalyptic number.

22240706 is a deficient number, since it is larger than the sum of its proper divisors (11120356).

22240706 is a wasteful number, since it uses less digits than its factorization.

22240706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120355.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22240706 is about 4716.0053010996. The cubic root of 22240706 is about 281.2221492751. Note that the first 3 decimals are identical.

Adding to 22240706 its reverse (60704222), we get a palindrome (82944928).

The spelling of 22240706 in words is "twenty-two million, two hundred forty thousand, seven hundred six".