22447668 has 12 divisors (see below), whose sum is σ = 52377920. Its totient is φ = 7482552.

The previous prime is 22447661. The next prime is 22447679. The reversal of 22447668 is 86674422.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 935308 + ... + 935331.

Almost surely, 2^22447668 is an apocalyptic number.

It is an amenable number.

22447668 is an abundant number, since it is smaller than the sum of its proper divisors (29930252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22447668 is a wasteful number, since it uses less digits than its factorization.

22447668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870646 (or 1870644 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 22447668 is about 4737.8970018353. The cubic root of 22447668 is about 282.0917663222.

The spelling of 22447668 in words is "twenty-two million, four hundred forty-seven thousand, six hundred sixty-eight".