2004544 has 14 divisors (see below), whose sum is σ = 3977894. Its totient is φ = 1002240.

The previous prime is 2004539. The next prime is 2004559. The reversal of 2004544 is 4454002.

It can be written as a sum of positive squares in only one way, i.e., 1742400 + 262144 = 1320^2 + 512^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15597 + ... + 15724.

2^2004544 is an apocalyptic number.

It is an amenable number.

2004544 is a deficient number, since it is larger than the sum of its proper divisors (1973350).

2004544 is an equidigital number, since it uses as much as digits as its factorization.

2004544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31333 (or 31323 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2004544 is about 1415.8191974966. The cubic root of 2004544 is about 126.0874508382.

Adding to 2004544 its reverse (4454002), we get a palindrome (6458546).

The spelling of 2004544 in words is "two million, four thousand, five hundred forty-four".