22150706 has 4 divisors (see below), whose sum is σ = 33226062. Its totient is φ = 11075352.

The previous prime is 22150703. The next prime is 22150717. The reversal of 22150706 is 60705122.

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., 15673681 + 6477025 = 3959^2 + 2545^2 .

It is not an unprimeable number, because it can be changed into a prime (22150703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5537675 + ... + 5537678.

Almost surely, 2^22150706 is an apocalyptic number.

22150706 is a deficient number, since it is larger than the sum of its proper divisors (11075356).

22150706 is a wasteful number, since it uses less digits than its factorization.

22150706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075355.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 22150706 is about 4706.4536542922. The cubic root of 22150706 is about 280.8423020633.

Adding to 22150706 its reverse (60705122), we get a palindrome (82855828).

The spelling of 22150706 in words is "twenty-two million, one hundred fifty thousand, seven hundred six".