2004513421 has 4 divisors (see below), whose sum is σ = 2015712000. Its totient is φ = 1993314844.

The previous prime is 2004513419. The next prime is 2004513451. The reversal of 2004513421 is 1243154002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2004513421 - 2¹ = 2004513419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004513392 and 2004513401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004513451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5599021 + ... + 5599378.

It is an arithmetic number, because the mean of its divisors is an integer number (503928000).

Almost surely, 2^2004513421 is an apocalyptic number.

It is an amenable number.

2004513421 is a deficient number, since it is larger than the sum of its proper divisors (11198579).

2004513421 is a wasteful number, since it uses less digits than its factorization.

2004513421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198578.

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

The square root of 2004513421 is about 44771.7926936146. The cubic root of 2004513421 is about 1260.8680968689.

Adding to 2004513421 its reverse (1243154002), we get a palindrome (3247667423).

The spelling of 2004513421 in words is "two billion, four million, five hundred thirteen thousand, four hundred twenty-one".