22770226 has 8 divisors (see below), whose sum is σ = 34176384. Its totient is φ = 11378100.

The previous prime is 22770203. The next prime is 22770229. The reversal of 22770226 is 62207722.

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 = 22770194 and 22770203.

It is not an unprimeable number, because it can be changed into a prime (22770229) 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 in 3 ways as a sum of consecutive naturals, for example, 2871 + ... + 7333.

It is an arithmetic number, because the mean of its divisors is an integer number (4272048).

Almost surely, 2^22770226 is an apocalyptic number.

22770226 is the 2551-st nonagonal number.

22770226 is a deficient number, since it is larger than the sum of its proper divisors (11406158).

22770226 is a wasteful number, since it uses less digits than its factorization.

22770226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 22770226 is about 4771.8157969477. The cubic root of 22770226 is about 283.4365025288.

Adding to 22770226 its reverse (62207722), we get a palindrome (84977948).

The spelling of 22770226 in words is "twenty-two million, seven hundred seventy thousand, two hundred twenty-six".