18116426 has 8 divisors (see below), whose sum is σ = 27370560. Its totient is φ = 8992908.

The previous prime is 18116401. The next prime is 18116447. The reversal of 18116426 is 62461181.

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, 32306 + ... + 32861.

It is an arithmetic number, because the mean of its divisors is an integer number (3421320).

Almost surely, 2^18116426 is an apocalyptic number.

18116426 is a deficient number, since it is larger than the sum of its proper divisors (9254134).

18116426 is a wasteful number, since it uses less digits than its factorization.

18116426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65308.

The product of its digits is 2304, while the sum is 29.

The square root of 18116426 is about 4256.3395071352. The cubic root of 18116426 is about 262.6379670803.

The spelling of 18116426 in words is "eighteen million, one hundred sixteen thousand, four hundred twenty-six".