42390883 has 2 divisors, whose sum is σ = 42390884. Its totient is φ = 42390882.

The previous prime is 42390871. The next prime is 42390889. The reversal of 42390883 is 38809324.

42390883 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42390883 is a prime.

It is not a weakly prime, because it can be changed into another prime (42390889) 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, 21195441 + 21195442.

It is an arithmetic number, because the mean of its divisors is an integer number (21195442).

Almost surely, 2^42390883 is an apocalyptic number.

42390883 is a deficient number, since it is larger than the sum of its proper divisors (1).

42390883 is an equidigital number, since it uses as much as digits as its factorization.

42390883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 42390883 is about 6510.8281347306. The cubic root of 42390883 is about 348.6776853613.

The spelling of 42390883 in words is "forty-two million, three hundred ninety thousand, eight hundred eighty-three".