3242155421 has 8 divisors (see below), whose sum is σ = 3427834080. Its totient is φ = 3057980688.

The previous prime is 3242155403. The next prime is 3242155447. The reversal of 3242155421 is 1245512423.

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

It is not a de Polignac number, because 3242155421 - 2¹⁰ = 3242154397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242155471) 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 7 ways as a sum of consecutive naturals, for example, 371546 + ... + 380171.

It is an arithmetic number, because the mean of its divisors is an integer number (428479260).

Almost surely, 2^3242155421 is an apocalyptic number.

It is an amenable number.

3242155421 is a deficient number, since it is larger than the sum of its proper divisors (185678659).

3242155421 is a wasteful number, since it uses less digits than its factorization.

3242155421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751963.

The product of its digits is 9600, while the sum is 29.

The square root of 3242155421 is about 56939.9281787394. The cubic root of 3242155421 is about 1480.0553030528.

Adding to 3242155421 its reverse (1245512423), we get a palindrome (4487667844).

The spelling of 3242155421 in words is "three billion, two hundred forty-two million, one hundred fifty-five thousand, four hundred twenty-one".