22230442 has 24 divisors (see below), whose sum is σ = 36636516. Its totient is φ = 10056384.

The previous prime is 22230421. The next prime is 22230463. The reversal of 22230442 is 24403222.

It is an interprime number because it is at equal distance from previous prime (22230421) and next prime (22230463).

It can be written as a sum of positive squares in 2 ways, for example, as 21724921 + 505521 = 4661^2 + 711^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 162198 + ... + 162334.

Almost surely, 2^22230442 is an apocalyptic number.

22230442 is a deficient number, since it is larger than the sum of its proper divisors (14406074).

22230442 is a wasteful number, since it uses less digits than its factorization.

22230442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22230442 is about 4714.9169663951. The cubic root of 22230442 is about 281.1788816396.

Adding to 22230442 its reverse (24403222), we get a palindrome (46633664).

The spelling of 22230442 in words is "twenty-two million, two hundred thirty thousand, four hundred forty-two".