22642226 has 8 divisors (see below), whose sum is σ = 34180140. Its totient is φ = 11248848.

The previous prime is 22642211. The next prime is 22642229. The reversal of 22642226 is 62224622.

It can be written as a sum of positive squares in 2 ways, for example, as 22572001 + 70225 = 4751^2 + 265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22642195 and 22642204.

It is not an unprimeable number, because it can be changed into a prime (22642229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35741 + ... + 36368.

Almost surely, 2^22642226 is an apocalyptic number.

22642226 is a deficient number, since it is larger than the sum of its proper divisors (11537914).

22642226 is a wasteful number, since it uses less digits than its factorization.

22642226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72268.

The product of its digits is 4608, while the sum is 26.

The square root of 22642226 is about 4758.3848099959. The cubic root of 22642226 is about 282.9044031934.

Adding to 22642226 its reverse (62224622), we get a palindrome (84866848).

The spelling of 22642226 in words is "twenty-two million, six hundred forty-two thousand, two hundred twenty-six".