18718106 has 8 divisors (see below), whose sum is σ = 30629664. Its totient is φ = 8508220.

The previous prime is 18718103. The next prime is 18718121. The reversal of 18718106 is 60181781.

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

It is not an unprimeable number, because it can be changed into a prime (18718103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425390 + ... + 425433.

It is an arithmetic number, because the mean of its divisors is an integer number (3828708).

Almost surely, 2^18718106 is an apocalyptic number.

18718106 is a deficient number, since it is larger than the sum of its proper divisors (11911558).

18718106 is a wasteful number, since it uses less digits than its factorization.

18718106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850836.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 18718106 is about 4326.4426495679. The cubic root of 18718106 is about 265.5139237723.

Adding to 18718106 its reverse (60181781), we get a palindrome (78899887).

The spelling of 18718106 in words is "eighteen million, seven hundred eighteen thousand, one hundred six".