22481443 has 8 divisors (see below), whose sum is σ = 22785840. Its totient is φ = 22179360.

The previous prime is 22481383. The next prime is 22481453. The reversal of 22481443 is 34418422.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22481443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22481453) 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 7 ways as a sum of consecutive naturals, for example, 26973 + ... + 27793.

It is an arithmetic number, because the mean of its divisors is an integer number (2848230).

Almost surely, 2^22481443 is an apocalyptic number.

22481443 is a deficient number, since it is larger than the sum of its proper divisors (304397).

22481443 is a wasteful number, since it uses less digits than its factorization.

22481443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its digits is 6144, while the sum is 28.

The square root of 22481443 is about 4741.4600072130. The cubic root of 22481443 is about 282.2331748481.

Adding to 22481443 its reverse (34418422), we get a palindrome (56899865).

The spelling of 22481443 in words is "twenty-two million, four hundred eighty-one thousand, four hundred forty-three".