22443866 has 4 divisors (see below), whose sum is σ = 33665802. Its totient is φ = 11221932.

The previous prime is 22443853. The next prime is 22443887. The reversal of 22443866 is 66834422.

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

It can be written as a sum of positive squares in only one way, i.e., 22287841 + 156025 = 4721^2 + 395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610965 + ... + 5610968.

Almost surely, 2^22443866 is an apocalyptic number.

22443866 is a deficient number, since it is larger than the sum of its proper divisors (11221936).

22443866 is a wasteful number, since it uses less digits than its factorization.

22443866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221935.

The product of its digits is 55296, while the sum is 35.

The square root of 22443866 is about 4737.4957519770. The cubic root of 22443866 is about 282.0758393010.

The spelling of 22443866 in words is "twenty-two million, four hundred forty-three thousand, eight hundred sixty-six".