1827944 has 16 divisors (see below), whose sum is σ = 3511620. Its totient is φ = 891520.

The previous prime is 1827937. The next prime is 1827949. The reversal of 1827944 is 4497281.

Added to its reverse (4497281) it gives a square (6325225 = 2515²).

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 532900 = 1138^2 + 730^2 .

It is not an unprimeable number, because it can be changed into a prime (1827949) 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 3 ways as a sum of consecutive naturals, for example, 2459 + ... + 3114.

2^1827944 is an apocalyptic number.

It is an amenable number.

1827944 is a deficient number, since it is larger than the sum of its proper divisors (1683676).

1827944 is a wasteful number, since it uses less digits than its factorization.

1827944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620 (or 5616 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1827944 is about 1352.0147928185. The cubic root of 1827944 is about 122.2702956282.

Adding to 1827944 its reverse (4497281), we get a square (6325225 = 2515²).

The spelling of 1827944 in words is "one million, eight hundred twenty-seven thousand, nine hundred forty-four".