22444445 has 8 divisors (see below), whose sum is σ = 27258336. Its totient is φ = 17738896.

The previous prime is 22444441. The next prime is 22444483. The reversal of 22444445 is 54444422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22444445 - 2² = 22444441 is a prime.

It is a super-2 number, since 2×22444445² = 1007506222716050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444441) 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, 26627 + ... + 27456.

It is an arithmetic number, because the mean of its divisors is an integer number (3407292).

Almost surely, 2^22444445 is an apocalyptic number.

It is an amenable number.

22444445 is a deficient number, since it is larger than the sum of its proper divisors (4813891).

22444445 is an equidigital number, since it uses as much as digits as its factorization.

22444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54171.

The product of its digits is 20480, while the sum is 29.

The square root of 22444445 is about 4737.5568598171. The cubic root of 22444445 is about 282.0782649156.

Adding to 22444445 its reverse (54444422), we get a palindrome (76888867).

The spelling of 22444445 in words is "twenty-two million, four hundred forty-four thousand, four hundred forty-five".