2004541 has 12 divisors (see below), whose sum is σ = 2544480. Its totient is φ = 1561560.

The previous prime is 2004539. The next prime is 2004559. The reversal of 2004541 is 1454002.

It is not a de Polignac number, because 2004541 - 2¹ = 2004539 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321 + ... + 2398.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

2^2004541 is an apocalyptic number.

It is an amenable number.

2004541 is a deficient number, since it is larger than the sum of its proper divisors (539939).

2004541 is a wasteful number, since it uses less digits than its factorization.

2004541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2004541 is about 1415.8181380389. The cubic root of 2004541 is about 126.0873879373.

Adding to 2004541 its reverse (1454002), we get a palindrome (3458543).

The spelling of 2004541 in words is "two million, four thousand, five hundred forty-one".