430243221 has 16 divisors (see below), whose sum is σ = 599462784. Its totient is φ = 273962304.

The previous prime is 430243207. The next prime is 430243237. The reversal of 430243221 is 122342034.

It is not a de Polignac number, because 430243221 - 2¹⁷ = 430112149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430243321) 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 15 ways as a sum of consecutive naturals, for example, 48115 + ... + 56351.

It is an arithmetic number, because the mean of its divisors is an integer number (37466424).

Almost surely, 2^430243221 is an apocalyptic number.

It is an amenable number.

430243221 is a deficient number, since it is larger than the sum of its proper divisors (169219563).

430243221 is a wasteful number, since it uses less digits than its factorization.

430243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 430243221 is about 20742.3051033389. The cubic root of 430243221 is about 754.9265141991.

Adding to 430243221 its reverse (122342034), we get a palindrome (552585255).

The spelling of 430243221 in words is "four hundred thirty million, two hundred forty-three thousand, two hundred twenty-one".