18106726 has 8 divisors (see below), whose sum is σ = 29629224. Its totient is φ = 8230320.

The previous prime is 18106667. The next prime is 18106733. The reversal of 18106726 is 62760181.

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

It is a congruent number.

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, 411495 + ... + 411538.

It is an arithmetic number, because the mean of its divisors is an integer number (3703653).

Almost surely, 2^18106726 is an apocalyptic number.

18106726 is the 2275-th centered heptagonal number.

18106726 is a deficient number, since it is larger than the sum of its proper divisors (11522498).

18106726 is a wasteful number, since it uses less digits than its factorization.

18106726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823046.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 18106726 is about 4255.1998777966. The cubic root of 18106726 is about 262.5910843398.

The spelling of 18106726 in words is "eighteen million, one hundred six thousand, seven hundred twenty-six".