3200021421 has 8 divisors (see below), whose sum is σ = 4276831584. Its totient is φ = 2128279440.

The previous prime is 3200021399. The next prime is 3200021459. The reversal of 3200021421 is 1241200023.

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

It is not a de Polignac number, because 3200021421 - 2²³ = 3191632813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3200021421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200021491) 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, 1265571 + ... + 1268096.

It is an arithmetic number, because the mean of its divisors is an integer number (534603948).

Almost surely, 2^3200021421 is an apocalyptic number.

It is an amenable number.

3200021421 is a deficient number, since it is larger than the sum of its proper divisors (1076810163).

3200021421 is a wasteful number, since it uses less digits than its factorization.

3200021421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534091.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3200021421 is about 56568.7318312864. The cubic root of 3200021421 is about 1473.6158876004.

Adding to 3200021421 its reverse (1241200023), we get a palindrome (4441221444).

The spelling of 3200021421 in words is "three billion, two hundred million, twenty-one thousand, four hundred twenty-one".