22230356 has 24 divisors (see below), whose sum is σ = 42615720. Its totient is φ = 10099712.

The previous prime is 22230349. The next prime is 22230359. The reversal of 22230356 is 65303222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3740356 + 18490000 = 1934^2 + 4300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3665 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (1775655).

Almost surely, 2^22230356 is an apocalyptic number.

It is an amenable number.

22230356 is a deficient number, since it is larger than the sum of its proper divisors (20385364).

22230356 is a wasteful number, since it uses less digits than its factorization.

22230356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323 (or 11321 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 22230356 is about 4714.9078463953. The cubic root of 22230356 is about 281.1785190524.

Adding to 22230356 its reverse (65303222), we get a palindrome (87533578).

The spelling of 22230356 in words is "twenty-two million, two hundred thirty thousand, three hundred fifty-six".