22442206 has 4 divisors (see below), whose sum is σ = 33663312. Its totient is φ = 11221102.

The previous prime is 22442179. The next prime is 22442207. The reversal of 22442206 is 60224422.

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

It is a super-2 number, since 2×22442206² = 1007305220292872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610550 + ... + 5610553.

It is an arithmetic number, because the mean of its divisors is an integer number (8415828).

Almost surely, 2^22442206 is an apocalyptic number.

22442206 is a deficient number, since it is larger than the sum of its proper divisors (11221106).

22442206 is a wasteful number, since it uses less digits than its factorization.

22442206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221105.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 22442206 is about 4737.3205506911. The cubic root of 22442206 is about 282.0688848034.

Adding to 22442206 its reverse (60224422), we get a palindrome (82666628).

The spelling of 22442206 in words is "twenty-two million, four hundred forty-two thousand, two hundred six".