3201442421 has 4 divisors (see below), whose sum is σ = 3221833932. Its totient is φ = 3181050912.

The previous prime is 3201442403. The next prime is 3201442423. The reversal of 3201442421 is 1242441023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2181917521 + 1019524900 = 46711^2 + 31930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3201442421 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 (3201442423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10195520 + ... + 10195833.

It is an arithmetic number, because the mean of its divisors is an integer number (805458483).

Almost surely, 2^3201442421 is an apocalyptic number.

It is an amenable number.

3201442421 is a deficient number, since it is larger than the sum of its proper divisors (20391511).

3201442421 is a wasteful number, since it uses less digits than its factorization.

3201442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20391510.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 3201442421 is about 56581.2903794178. The cubic root of 3201442421 is about 1473.8339797132.

Adding to 3201442421 its reverse (1242441023), we get a palindrome (4443883444).

The spelling of 3201442421 in words is "three billion, two hundred one million, four hundred forty-two thousand, four hundred twenty-one".