433424221 has 8 divisors (see below), whose sum is σ = 438294560. Its totient is φ = 428570352.

The previous prime is 433424183. The next prime is 433424249. The reversal of 433424221 is 122424334.

It is a happy number.

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 433424221 - 2⁹ = 433423709 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 (433424291) 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 7 ways as a sum of consecutive naturals, for example, 53206 + ... + 60808.

It is an arithmetic number, because the mean of its divisors is an integer number (54786820).

Almost surely, 2^433424221 is an apocalyptic number.

It is an amenable number.

433424221 is a deficient number, since it is larger than the sum of its proper divisors (4870339).

433424221 is a wasteful number, since it uses less digits than its factorization.

433424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235.

The product of its digits is 4608, while the sum is 25.

The square root of 433424221 is about 20818.8429313447. The cubic root of 433424221 is about 756.7824621981.

Adding to 433424221 its reverse (122424334), we get a palindrome (555848555).

The spelling of 433424221 in words is "four hundred thirty-three million, four hundred twenty-four thousand, two hundred twenty-one".