1810944 has 80 divisors (see below), whose sum is σ = 5401440. Its totient is φ = 599040.

The previous prime is 1810937. The next prime is 1810967. The reversal of 1810944 is 4490181.

It is a super-2 number, since 2×1810944² = 6559036342272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13759 + ... + 13889.

It is an arithmetic number, because the mean of its divisors is an integer number (67518).

2^1810944 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 1810944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2700720).

1810944 is an abundant number, since it is smaller than the sum of its proper divisors (3590496).

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

1810944 is an equidigital number, since it uses as much as digits as its factorization.

1810944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1810944 is about 1345.7131938121. The cubic root of 1810944 is about 121.8900738752.

The spelling of 1810944 in words is "one million, eight hundred ten thousand, nine hundred forty-four".