2004538 has 32 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 854784.

The previous prime is 2004529. The next prime is 2004539. The reversal of 2004538 is 8354002.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2004539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18681 + ... + 18787.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2^2004538 is an apocalyptic number.

2004538 is a deficient number, since it is larger than the sum of its proper divisors (1494662).

2004538 is a wasteful number, since it uses less digits than its factorization.

2004538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2004538 is about 1415.8170785804. The cubic root of 2004538 is about 126.0873250364.

The spelling of 2004538 in words is "two million, four thousand, five hundred thirty-eight".