22447666 has 8 divisors (see below), whose sum is σ = 33914160. Its totient is φ = 11142948.

The previous prime is 22447661. The next prime is 22447679. The reversal of 22447666 is 66674422.

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

It is not an unprimeable number, because it can be changed into a prime (22447661) 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 3 ways as a sum of consecutive naturals, for example, 40096 + ... + 40651.

It is an arithmetic number, because the mean of its divisors is an integer number (4239270).

Almost surely, 2^22447666 is an apocalyptic number.

22447666 is a deficient number, since it is larger than the sum of its proper divisors (11466494).

22447666 is a wasteful number, since it uses less digits than its factorization.

22447666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80888.

The product of its digits is 96768, while the sum is 37.

The square root of 22447666 is about 4737.8967907712. The cubic root of 22447666 is about 282.0917579444.

The spelling of 22447666 in words is "twenty-two million, four hundred forty-seven thousand, six hundred sixty-six".