2004201421 has 8 divisors (see below), whose sum is σ = 2055752600. Its totient is φ = 1953253440.

The previous prime is 2004201371. The next prime is 2004201431. The reversal of 2004201421 is 1241024002.

It can be written as a sum of positive squares in 4 ways, for example, as 22705225 + 1981496196 = 4765^2 + 44514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2004201421 - 2¹³ = 2004193229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004201395 and 2004201404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004201431) 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, 144066 + ... + 157363.

It is an arithmetic number, because the mean of its divisors is an integer number (256969075).

Almost surely, 2^2004201421 is an apocalyptic number.

It is an amenable number.

2004201421 is a deficient number, since it is larger than the sum of its proper divisors (51551179).

2004201421 is a wasteful number, since it uses less digits than its factorization.

2004201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301599.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2004201421 is about 44768.3082213300. The cubic root of 2004201421 is about 1260.8026759619.

Adding to 2004201421 its reverse (1241024002), we get a palindrome (3245225423).

The spelling of 2004201421 in words is "two billion, four million, two hundred one thousand, four hundred twenty-one".