18086708 has 24 divisors (see below), whose sum is σ = 35280000. Its totient is φ = 8062848.

The previous prime is 18086707. The next prime is 18086711. The reversal of 18086708 is 80768081.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18086707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5708 + ... + 8291.

It is an arithmetic number, because the mean of its divisors is an integer number (1470000).

Almost surely, 2^18086708 is an apocalyptic number.

It is an amenable number.

18086708 is a deficient number, since it is larger than the sum of its proper divisors (17193292).

18086708 is a wasteful number, since it uses less digits than its factorization.

18086708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14039 (or 14037 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 18086708 is about 4252.8470463914. The cubic root of 18086708 is about 262.4942789380.

The spelling of 18086708 in words is "eighteen million, eighty-six thousand, seven hundred eight".