42332321 has 2 divisors, whose sum is σ = 42332322. Its totient is φ = 42332320.

The previous prime is 42332299. The next prime is 42332371. The reversal of 42332321 is 12323324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 20802721 = 4640^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 42332321 - 2¹⁸ = 42070177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42332293 and 42332302.

It is not a weakly prime, because it can be changed into another prime (42332371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21166160 + 21166161.

It is an arithmetic number, because the mean of its divisors is an integer number (21166161).

Almost surely, 2^42332321 is an apocalyptic number.

It is an amenable number.

42332321 is a deficient number, since it is larger than the sum of its proper divisors (1).

42332321 is an equidigital number, since it uses as much as digits as its factorization.

42332321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 20.

The square root of 42332321 is about 6506.3293030710. The cubic root of 42332321 is about 348.5170480474.

Adding to 42332321 its reverse (12323324), we get a palindrome (54655645).

The spelling of 42332321 in words is "forty-two million, three hundred thirty-two thousand, three hundred twenty-one".