432000421 has 4 divisors (see below), whose sum is σ = 450783072. Its totient is φ = 413217772.

The previous prime is 432000391. The next prime is 432000427. The reversal of 432000421 is 124000234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124000234 = 2 ⋅62000117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432000421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 432000395 and 432000404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432000427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9391291 + ... + 9391336.

It is an arithmetic number, because the mean of its divisors is an integer number (112695768).

Almost surely, 2^432000421 is an apocalyptic number.

It is an amenable number.

432000421 is a deficient number, since it is larger than the sum of its proper divisors (18782651).

432000421 is a wasteful number, since it uses less digits than its factorization.

432000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18782650.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 432000421 is about 20784.6198185100. The cubic root of 432000421 is about 755.9528755048.

Adding to 432000421 its reverse (124000234), we get a palindrome (556000655).

The spelling of 432000421 in words is "four hundred thirty-two million, four hundred twenty-one", and thus it is an aban number.