42328243 has 2 divisors, whose sum is σ = 42328244. Its totient is φ = 42328242.

The previous prime is 42328213. The next prime is 42328267. The reversal of 42328243 is 34282324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42328243 - 2⁹ = 42327731 is a prime.

It is not a weakly prime, because it can be changed into another prime (42328213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21164121 + 21164122.

It is an arithmetic number, because the mean of its divisors is an integer number (21164122).

Almost surely, 2^42328243 is an apocalyptic number.

42328243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42328243 is an equidigital number, since it uses as much as digits as its factorization.

42328243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 42328243 is about 6506.0159083728. The cubic root of 42328243 is about 348.5058564556.

The spelling of 42328243 in words is "forty-two million, three hundred twenty-eight thousand, two hundred forty-three".