1810746 has 36 divisors (see below), whose sum is σ = 4566042. Its totient is φ = 517104.

The previous prime is 1810733. The next prime is 1810747. The reversal of 1810746 is 6470181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1535121 + 275625 = 1239^2 + 525^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1810747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145 + ... + 1908.

2^1810746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1810746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283021).

1810746 is an abundant number, since it is smaller than the sum of its proper divisors (2755296).

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

1810746 is a wasteful number, since it uses less digits than its factorization.

1810746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1810746 is about 1345.6396248625. The cubic root of 1810746 is about 121.8856314197.

It can be divided in two parts, 1810 and 746, that added together give a triangular number (2556 = T₇₁).

The spelling of 1810746 in words is "one million, eight hundred ten thousand, seven hundred forty-six".