2004316421 has 4 divisors (see below), whose sum is σ = 2004529344. Its totient is φ = 2004103500.

The previous prime is 2004316343. The next prime is 2004316427. The reversal of 2004316421 is 1246134002.

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 2004316421 - 2¹⁴ = 2004300037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004316427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91655 + ... + 111396.

It is an arithmetic number, because the mean of its divisors is an integer number (501132336).

Almost surely, 2^2004316421 is an apocalyptic number.

It is an amenable number.

2004316421 is a deficient number, since it is larger than the sum of its proper divisors (212923).

2004316421 is an equidigital number, since it uses as much as digits as its factorization.

2004316421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212922.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2004316421 is about 44769.5925936344. The cubic root of 2004316421 is about 1260.8267902273.

The spelling of 2004316421 in words is "two billion, four million, three hundred sixteen thousand, four hundred twenty-one".