22481445 has 48 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 10112256.

The previous prime is 22481383. The next prime is 22481453. The reversal of 22481445 is 54418422.

It is not a de Polignac number, because 22481445 - 2¹⁷ = 22350373 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 53446 + ... + 53864.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^22481445 is an apocalyptic number.

It is an amenable number.

22481445 is a deficient number, since it is larger than the sum of its proper divisors (20035995).

22481445 is a wasteful number, since it uses less digits than its factorization.

22481445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 507 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 22481445 is about 4741.4602181185. The cubic root of 22481445 is about 282.2331832175.

Adding to 22481445 its reverse (54418422), we get a palindrome (76899867).

The spelling of 22481445 in words is "twenty-two million, four hundred eighty-one thousand, four hundred forty-five".