22086518 has 4 divisors (see below), whose sum is σ = 33129780. Its totient is φ = 11043258.

The previous prime is 22086497. The next prime is 22086523. The reversal of 22086518 is 81568022.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5521628 + ... + 5521631.

It is an arithmetic number, because the mean of its divisors is an integer number (8282445).

Almost surely, 2^22086518 is an apocalyptic number.

22086518 is a deficient number, since it is larger than the sum of its proper divisors (11043262).

22086518 is a wasteful number, since it uses less digits than its factorization.

22086518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043261.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 22086518 is about 4699.6295598696. The cubic root of 22086518 is about 280.5707660036.

The spelling of 22086518 in words is "twenty-two million, eighty-six thousand, five hundred eighteen".