42328493 has 2 divisors, whose sum is σ = 42328494. Its totient is φ = 42328492.

The previous prime is 42328459. The next prime is 42328511. The reversal of 42328493 is 39482324.

It is a happy number.

42328493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32512804 + 9815689 = 5702^2 + 3133^2 .

It is a cyclic number.

It is not a de Polignac number, because 42328493 - 2¹⁰ = 42327469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42828493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21164246 + 21164247.

It is an arithmetic number, because the mean of its divisors is an integer number (21164247).

Almost surely, 2^42328493 is an apocalyptic number.

It is an amenable number.

42328493 is a deficient number, since it is larger than the sum of its proper divisors (1).

42328493 is an equidigital number, since it uses as much as digits as its factorization.

42328493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 42328493 is about 6506.0351213316. The cubic root of 42328493 is about 348.5065425719.

The spelling of 42328493 in words is "forty-two million, three hundred twenty-eight thousand, four hundred ninety-three".