18055706 has 8 divisors (see below), whose sum is σ = 27246240. Its totient is φ = 8973628.

The previous prime is 18055699. The next prime is 18055721. The reversal of 18055706 is 60755081.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26696 + ... + 27363.

It is an arithmetic number, because the mean of its divisors is an integer number (3405780).

Almost surely, 2^18055706 is an apocalyptic number.

18055706 is a deficient number, since it is larger than the sum of its proper divisors (9190534).

18055706 is a wasteful number, since it uses less digits than its factorization.

18055706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54228.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 18055706 is about 4249.2006307069. The cubic root of 18055706 is about 262.3442147454.

The spelling of 18055706 in words is "eighteen million, fifty-five thousand, seven hundred six".