22230506 has 4 divisors (see below), whose sum is σ = 33345762. Its totient is φ = 11115252.

The previous prime is 22230497. The next prime is 22230517. The reversal of 22230506 is 60503222.

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., 21576025 + 654481 = 4645^2 + 809^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557625 + ... + 5557628.

Almost surely, 2^22230506 is an apocalyptic number.

22230506 is a deficient number, since it is larger than the sum of its proper divisors (11115256).

22230506 is a wasteful number, since it uses less digits than its factorization.

22230506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11115255.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22230506 is about 4714.9237533602. The cubic root of 22230506 is about 281.1791514712.

Adding to 22230506 its reverse (60503222), we get a palindrome (82733728).

The spelling of 22230506 in words is "twenty-two million, two hundred thirty thousand, five hundred six".