22489966 has 4 divisors (see below), whose sum is σ = 33734952. Its totient is φ = 11244982.

The previous prime is 22489937. The next prime is 22489979. The reversal of 22489966 is 66998422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66998422 = 2 ⋅33499211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5622490 + ... + 5622493.

It is an arithmetic number, because the mean of its divisors is an integer number (8433738).

Almost surely, 2^22489966 is an apocalyptic number.

22489966 is a deficient number, since it is larger than the sum of its proper divisors (11244986).

22489966 is a wasteful number, since it uses less digits than its factorization.

22489966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244985.

The product of its digits is 373248, while the sum is 46.

The square root of 22489966 is about 4742.3586958390. The cubic root of 22489966 is about 282.2688363999.

The spelling of 22489966 in words is "twenty-two million, four hundred eighty-nine thousand, nine hundred sixty-six".