2081444 has 6 divisors (see below), whose sum is σ = 3642534. Its totient is φ = 1040720.

The previous prime is 2081437. The next prime is 2081467. The reversal of 2081444 is 4441802.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 422500 = 1288^2 + 650^2 .

It is an unprimeable number.

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, 260177 + ... + 260184.

It is an arithmetic number, because the mean of its divisors is an integer number (607089).

2^2081444 is an apocalyptic number.

It is an amenable number.

2081444 is a deficient number, since it is larger than the sum of its proper divisors (1561090).

2081444 is a wasteful number, since it uses less digits than its factorization.

2081444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520365 (or 520363 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2081444 is about 1442.7210402569. The cubic root of 2081444 is about 127.6796186832.

The spelling of 2081444 in words is "two million, eighty-one thousand, four hundred forty-four".