432331381 has 2 divisors, whose sum is σ = 432331382. Its totient is φ = 432331380.

The previous prime is 432331379. The next prime is 432331399. The reversal of 432331381 is 183133234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297562500 + 134768881 = 17250^2 + 11609^2 .

It is a cyclic number.

It is not a de Polignac number, because 432331381 - 2¹ = 432331379 is a prime.

It is a super-2 number, since 2×432331381² = 373820845994734322, which contains 22 as substring.

Together with 432331379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432331181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216165690 + 216165691.

It is an arithmetic number, because the mean of its divisors is an integer number (216165691).

Almost surely, 2^432331381 is an apocalyptic number.

It is an amenable number.

432331381 is a deficient number, since it is larger than the sum of its proper divisors (1).

432331381 is an equidigital number, since it uses as much as digits as its factorization.

432331381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 432331381 is about 20792.5799505497. The cubic root of 432331381 is about 756.1458740048.

The spelling of 432331381 in words is "four hundred thirty-two million, three hundred thirty-one thousand, three hundred eighty-one".