2009604 has 24 divisors (see below), whose sum is σ = 4965408. Its totient is φ = 630400.

The previous prime is 2009603. The next prime is 2009639. The reversal of 2009604 is 4069002.

It is not an unprimeable number, because it can be changed into a prime (2009603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4722 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (206892).

2^2009604 is an apocalyptic number.

It is an amenable number.

2009604 is an abundant number, since it is smaller than the sum of its proper divisors (2955804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2009604 is a wasteful number, since it uses less digits than its factorization.

2009604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875 (or 9873 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2009604 is about 1417.6050225645. The cubic root of 2009604 is about 126.1934544020.

The spelling of 2009604 in words is "two million, nine thousand, six hundred four".