432221423 has 16 divisors (see below), whose sum is σ = 459571200. Its totient is φ = 405790560.

The previous prime is 432221411. The next prime is 432221429. The reversal of 432221423 is 324122234.

It is a cyclic number.

It is not a de Polignac number, because 432221423 - 2²⁴ = 415444207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432221429) 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, 337298 + ... + 338576.

It is an arithmetic number, because the mean of its divisors is an integer number (28723200).

Almost surely, 2^432221423 is an apocalyptic number.

432221423 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

432221423 is a deficient number, since it is larger than the sum of its proper divisors (27349777).

432221423 is a wasteful number, since it uses less digits than its factorization.

432221423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622.

The product of its digits is 2304, while the sum is 23.

The square root of 432221423 is about 20789.9356179859. The cubic root of 432221423 is about 756.0817632003.

Adding to 432221423 its reverse (324122234), we get a palindrome (756343657).

The spelling of 432221423 in words is "four hundred thirty-two million, two hundred twenty-one thousand, four hundred twenty-three".