430320221 has 8 divisors (see below), whose sum is σ = 440868384. Its totient is φ = 419796720.

The previous prime is 430320211. The next prime is 430320229. The reversal of 430320221 is 122023034.

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 430320221 - 2⁶ = 430320157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 430320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430320229) 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, 32006 + ... + 43416.

It is an arithmetic number, because the mean of its divisors is an integer number (55108548).

Almost surely, 2^430320221 is an apocalyptic number.

It is an amenable number.

430320221 is a deficient number, since it is larger than the sum of its proper divisors (10548163).

430320221 is a wasteful number, since it uses less digits than its factorization.

430320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12331.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 430320221 is about 20744.1611303036. The cubic root of 430320221 is about 754.9715475441.

Adding to 430320221 its reverse (122023034), we get a palindrome (552343255).

The spelling of 430320221 in words is "four hundred thirty million, three hundred twenty thousand, two hundred twenty-one".