22443908 has 6 divisors (see below), whose sum is σ = 39276846. Its totient is φ = 11221952.

The previous prime is 22443901. The next prime is 22443919. The reversal of 22443908 is 80934422.

It can be written as a sum of positive squares in only one way, i.e., 19909444 + 2534464 = 4462^2 + 1592^2 .

It is not an unprimeable number, because it can be changed into a prime (22443901) by changing a digit.

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 as a sum of consecutive naturals, namely, 2805485 + ... + 2805492.

It is an arithmetic number, because the mean of its divisors is an integer number (6546141).

Almost surely, 2^22443908 is an apocalyptic number.

It is an amenable number.

22443908 is a deficient number, since it is larger than the sum of its proper divisors (16832938).

22443908 is a wasteful number, since it uses less digits than its factorization.

22443908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610981 (or 5610979 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 22443908 is about 4737.5001846966. The cubic root of 22443908 is about 282.0760152537.

The spelling of 22443908 in words is "twenty-two million, four hundred forty-three thousand, nine hundred eight".