22772234 has 4 divisors (see below), whose sum is σ = 34158354. Its totient is φ = 11386116.

The previous prime is 22772227. The next prime is 22772237. The reversal of 22772234 is 43227722.

It is a happy number.

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., 22137025 + 635209 = 4705^2 + 797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22772197 and 22772206.

It is not an unprimeable number, because it can be changed into a prime (22772237) 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, 5693057 + ... + 5693060.

Almost surely, 2^22772234 is an apocalyptic number.

22772234 is a deficient number, since it is larger than the sum of its proper divisors (11386120).

22772234 is a wasteful number, since it uses less digits than its factorization.

22772234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11386119.

The product of its digits is 9408, while the sum is 29.

The square root of 22772234 is about 4772.0261943958. The cubic root of 22772234 is about 283.4448339315. Note that the first 3 decimals are identical.

Adding to 22772234 its reverse (43227722), we get a palindrome (65999956).

The spelling of 22772234 in words is "twenty-two million, seven hundred seventy-two thousand, two hundred thirty-four".