432221321 has 8 divisors (see below), whose sum is σ = 494915904. Its totient is φ = 369763920.

The previous prime is 432221299. The next prime is 432221341. The reversal of 432221321 is 123122234.

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 432221321 - 2²⁶ = 365112457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 432221293 and 432221302.

It is not an unprimeable number, because it can be changed into a prime (432221341) 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 7 ways as a sum of consecutive naturals, for example, 55370 + ... + 62691.

It is an arithmetic number, because the mean of its divisors is an integer number (61864488).

Almost surely, 2^432221321 is an apocalyptic number.

It is an amenable number.

432221321 is a deficient number, since it is larger than the sum of its proper divisors (62694583).

432221321 is a wasteful number, since it uses less digits than its factorization.

432221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118591.

The product of its digits is 576, while the sum is 20.

The square root of 432221321 is about 20789.9331648757. The cubic root of 432221321 is about 756.0817037244.

Adding to 432221321 its reverse (123122234), we get a palindrome (555343555).

It can be divided in two parts, 4322213 and 21, that added together give a palindrome (4322234).

The spelling of 432221321 in words is "four hundred thirty-two million, two hundred twenty-one thousand, three hundred twenty-one".