432130221 has 20 divisors (see below), whose sum is σ = 646140000. Its totient is φ = 287813736.

The previous prime is 432130213. The next prime is 432130271. The reversal of 432130221 is 122031234.

432130221 is a `hidden beast` number, since 432 + 13 + 0 + 221 = 666.

It is not a de Polignac number, because 432130221 - 2³ = 432130213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 432130194 and 432130203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432130271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119640 + ... + 123198.

It is an arithmetic number, because the mean of its divisors is an integer number (32307000).

Almost surely, 2^432130221 is an apocalyptic number.

It is an amenable number.

432130221 is a deficient number, since it is larger than the sum of its proper divisors (214009779).

432130221 is a wasteful number, since it uses less digits than its factorization.

432130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070 (or 5061 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 432130221 is about 20787.7420851809. The cubic root of 432130221 is about 756.0285797964.

Adding to 432130221 its reverse (122031234), we get a palindrome (554161455).

The spelling of 432130221 in words is "four hundred thirty-two million, one hundred thirty thousand, two hundred twenty-one".