22772230 has 32 divisors (see below), whose sum is σ = 44906400. Its totient is φ = 8262912.

The previous prime is 22772227. The next prime is 22772237. The reversal of 22772230 is 3227722.

It is a junction number, because it is equal to n+sod(n) for n = 22772195 and 22772204.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 6186 + ... + 9154.

It is an arithmetic number, because the mean of its divisors is an integer number (1403325).

Almost surely, 2^22772230 is an apocalyptic number.

22772230 is a deficient number, since it is larger than the sum of its proper divisors (22134170).

22772230 is a wasteful number, since it uses less digits than its factorization.

22772230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 22772230 is about 4772.0257752866. The cubic root of 22772230 is about 283.4448173355. Note that the first 3 decimals are identical.

Adding to 22772230 its reverse (3227722), we get a palindrome (25999952).

The spelling of 22772230 in words is "twenty-two million, seven hundred seventy-two thousand, two hundred thirty".