432388321 has 2 divisors, whose sum is σ = 432388322. Its totient is φ = 432388320.

The previous prime is 432388277. The next prime is 432388343. The reversal of 432388321 is 123883234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240870400 + 191517921 = 15520^2 + 13839^2 .

It is a cyclic number.

It is not a de Polignac number, because 432388321 - 2⁷ = 432388193 is a prime.

It is not a weakly prime, because it can be changed into another prime (432388351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216194160 + 216194161.

It is an arithmetic number, because the mean of its divisors is an integer number (216194161).

Almost surely, 2^432388321 is an apocalyptic number.

It is an amenable number.

432388321 is a deficient number, since it is larger than the sum of its proper divisors (1).

432388321 is an equidigital number, since it uses as much as digits as its factorization.

432388321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 432388321 is about 20793.9491439217. The cubic root of 432388321 is about 756.1790684924.

The spelling of 432388321 in words is "four hundred thirty-two million, three hundred eighty-eight thousand, three hundred twenty-one".