2004475491 has 20 divisors (see below), whose sum is σ = 3170479752. Its totient is φ = 1257709248.

The previous prime is 2004475439. The next prime is 2004475513. The reversal of 2004475491 is 1945744002.

It is a happy number.

2004475491 is a `hidden beast` number, since 200 + 447 + 5 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 2004475491 - 2¹⁰ = 2004474467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2004470491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 726465 + ... + 729218.

Almost surely, 2^2004475491 is an apocalyptic number.

2004475491 is a deficient number, since it is larger than the sum of its proper divisors (1166004261).

2004475491 is a wasteful number, since it uses less digits than its factorization.

2004475491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455712 (or 1455703 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2004475491 is about 44771.3690990124. The cubic root of 2004475491 is about 1260.8601439782.

The spelling of 2004475491 in words is "two billion, four million, four hundred seventy-five thousand, four hundred ninety-one".