22223441 has 4 divisors (see below), whose sum is σ = 22245300. Its totient is φ = 22201584.

The previous prime is 22223429. The next prime is 22223473. The reversal of 22223441 is 14432222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15484225 + 6739216 = 3935^2 + 2596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22223441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22223491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9326 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (5561325).

Almost surely, 2^22223441 is an apocalyptic number.

It is an amenable number.

22223441 is a deficient number, since it is larger than the sum of its proper divisors (21859).

22223441 is a wasteful number, since it uses less digits than its factorization.

22223441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21858.

The product of its digits is 768, while the sum is 20.

The square root of 22223441 is about 4714.1744770426. The cubic root of 22223441 is about 281.1493614582.

Adding to 22223441 its reverse (14432222), we get a palindrome (36655663).

The spelling of 22223441 in words is "twenty-two million, two hundred twenty-three thousand, four hundred forty-one".