1816116 has 12 divisors (see below), whose sum is σ = 4237632. Its totient is φ = 605368.

The previous prime is 1816099. The next prime is 1816117. The reversal of 1816116 is 6116181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816117) 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, 75660 + ... + 75683.

It is an arithmetic number, because the mean of its divisors is an integer number (353136).

2^1816116 is an apocalyptic number.

It is an amenable number.

1816116 is an abundant number, since it is smaller than the sum of its proper divisors (2421516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816116 is a wasteful number, since it uses less digits than its factorization.

1816116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151350 (or 151348 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 1816116 is about 1347.6334813294. The cubic root of 1816116 is about 122.0060016755.

The spelling of 1816116 in words is "one million, eight hundred sixteen thousand, one hundred sixteen".