22705986 has 8 divisors (see below), whose sum is σ = 45411984. Its totient is φ = 7568660.

The previous prime is 22705979. The next prime is 22706003. The reversal of 22705986 is 68950722.

It is a happy number.

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

22705986 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892160 + ... + 1892171.

It is an arithmetic number, because the mean of its divisors is an integer number (5676498).

Almost surely, 2^22705986 is an apocalyptic number.

22705986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22705986 is a wasteful number, since it uses less digits than its factorization.

22705986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784336.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 22705986 is about 4765.0798524264. The cubic root of 22705986 is about 283.1697051366.

It can be divided in two parts, 2270 and 5986, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 22705986 in words is "twenty-two million, seven hundred five thousand, nine hundred eighty-six".