1810116 has 72 divisors (see below), whose sum is σ = 5713344. Its totient is φ = 469440.

The previous prime is 1810097. The next prime is 1810129. The reversal of 1810116 is 6110181.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (79352).

2^1810116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1810116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856672).

1810116 is an abundant number, since it is smaller than the sum of its proper divisors (3903228).

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

1810116 is a wasteful number, since it uses less digits than its factorization.

1810116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1810116 is about 1345.4055150771. The cubic root of 1810116 is about 121.8714941792.

Adding to 1810116 its reverse (6110181), we get a palindrome (7920297).

The spelling of 1810116 in words is "one million, eight hundred ten thousand, one hundred sixteen".