2011844 has 6 divisors (see below), whose sum is σ = 3520734. Its totient is φ = 1005920.

The previous prime is 2011843. The next prime is 2011861. The reversal of 2011844 is 4481102.

It can be written as a sum of positive squares in only one way, i.e., 1183744 + 828100 = 1088^2 + 910^2 .

It is not an unprimeable number, because it can be changed into a prime (2011843) 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 as a sum of consecutive naturals, namely, 251477 + ... + 251484.

It is an arithmetic number, because the mean of its divisors is an integer number (586789).

2^2011844 is an apocalyptic number.

It is an amenable number.

2011844 is a deficient number, since it is larger than the sum of its proper divisors (1508890).

2011844 is a wasteful number, since it uses less digits than its factorization.

2011844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502965 (or 502963 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2011844 is about 1418.3948674470. The cubic root of 2011844 is about 126.2403240632.

Adding to 2011844 its reverse (4481102), we get a palindrome (6492946).

The spelling of 2011844 in words is "two million, eleven thousand, eight hundred forty-four".