22668686 has 4 divisors (see below), whose sum is σ = 34003032. Its totient is φ = 11334342.

The previous prime is 22668677. The next prime is 22668689. The reversal of 22668686 is 68686622.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22668689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5667170 + ... + 5667173.

It is an arithmetic number, because the mean of its divisors is an integer number (8500758).

Almost surely, 2^22668686 is an apocalyptic number.

22668686 is a deficient number, since it is larger than the sum of its proper divisors (11334346).

22668686 is a wasteful number, since it uses less digits than its factorization.

22668686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334345.

The product of its digits is 331776, while the sum is 44.

The square root of 22668686 is about 4761.1643533909. The cubic root of 22668686 is about 283.0145622160.

The spelling of 22668686 in words is "twenty-two million, six hundred sixty-eight thousand, six hundred eighty-six".