1806118 has 8 divisors (see below), whose sum is σ = 2782512. Its totient is φ = 878616.

The previous prime is 1806113. The next prime is 1806137. The reversal of 1806118 is 8116081.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1806092 and 1806101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806113) 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, 12130 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (347814).

2^1806118 is an apocalyptic number.

1806118 is a deficient number, since it is larger than the sum of its proper divisors (976394).

1806118 is a wasteful number, since it uses less digits than its factorization.

1806118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24446.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1806118 is about 1343.9188963624. The cubic root of 1806118 is about 121.7817022546.

The spelling of 1806118 in words is "one million, eight hundred six thousand, one hundred eighteen".