1811104 has 12 divisors (see below), whose sum is σ = 3565674. Its totient is φ = 905536.

The previous prime is 1811083. The next prime is 1811107. The reversal of 1811104 is 4011181.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 121104 = 1300^2 + 348^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1811107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28267 + ... + 28330.

2^1811104 is an apocalyptic number.

It is an amenable number.

1811104 is a deficient number, since it is larger than the sum of its proper divisors (1754570).

1811104 is an equidigital number, since it uses as much as digits as its factorization.

1811104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56607 (or 56599 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1811104 is about 1345.7726405303. The cubic root of 1811104 is about 121.8936635016.

Adding to 1811104 its reverse (4011181), we get a palindrome (5822285).

The spelling of 1811104 in words is "one million, eight hundred eleven thousand, one hundred four".