433330221 has 16 divisors (see below), whose sum is σ = 625990464. Its totient is φ = 265569024.

The previous prime is 433330201. The next prime is 433330237. The reversal of 433330221 is 122033334.

It is not a de Polignac number, because 433330221 - 2⁹ = 433329709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433330201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96606 + ... + 100991.

It is an arithmetic number, because the mean of its divisors is an integer number (39124404).

Almost surely, 2^433330221 is an apocalyptic number.

It is an amenable number.

433330221 is a deficient number, since it is larger than the sum of its proper divisors (192660243).

433330221 is a wasteful number, since it uses less digits than its factorization.

433330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197660.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 433330221 is about 20816.5852386985. The cubic root of 433330221 is about 756.7277485239.

Adding to 433330221 its reverse (122033334), we get a palindrome (555363555).

The spelling of 433330221 in words is "four hundred thirty-three million, three hundred thirty thousand, two hundred twenty-one".