42385307 has 2 divisors, whose sum is σ = 42385308. Its totient is φ = 42385306.

The previous prime is 42385289. The next prime is 42385331. The reversal of 42385307 is 70358324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42385307 - 2⁶ = 42385243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42385337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21192653 + 21192654.

It is an arithmetic number, because the mean of its divisors is an integer number (21192654).

Almost surely, 2^42385307 is an apocalyptic number.

42385307 is a deficient number, since it is larger than the sum of its proper divisors (1).

42385307 is an equidigital number, since it uses as much as digits as its factorization.

42385307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 42385307 is about 6510.3999109118. The cubic root of 42385307 is about 348.6623966020.

The spelling of 42385307 in words is "forty-two million, three hundred eighty-five thousand, three hundred seven".