42588869 has 2 divisors, whose sum is σ = 42588870. Its totient is φ = 42588868.

The previous prime is 42588851. The next prime is 42588901. The reversal of 42588869 is 96888524.

42588869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39526369 + 3062500 = 6287^2 + 1750^2 .

It is a cyclic number.

It is not a de Polignac number, because 42588869 - 2⁸ = 42588613 is a prime.

It is a super-2 number, since 2×42588869² = 3627623525398322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42588809) 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, 21294434 + 21294435.

It is an arithmetic number, because the mean of its divisors is an integer number (21294435).

Almost surely, 2^42588869 is an apocalyptic number.

It is an amenable number.

42588869 is a deficient number, since it is larger than the sum of its proper divisors (1).

42588869 is an equidigital number, since it uses as much as digits as its factorization.

42588869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 50.

The square root of 42588869 is about 6526.0147869891. The cubic root of 42588869 is about 349.2196737979.

The spelling of 42588869 in words is "forty-two million, five hundred eighty-eight thousand, eight hundred sixty-nine".