42595209 has 12 divisors (see below), whose sum is σ = 63511552. Its totient is φ = 27480600.

The previous prime is 42595193. The next prime is 42595213. The reversal of 42595209 is 90259524.

It is a happy number.

42595209 is a `hidden beast` number, since 42 + 595 + 20 + 9 = 666.

42595209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42595209 - 2⁴ = 42595193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42595249) 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 in 11 ways as a sum of consecutive naturals, for example, 76057 + ... + 76614.

Almost surely, 2^42595209 is an apocalyptic number.

It is an amenable number.

42595209 is a deficient number, since it is larger than the sum of its proper divisors (20916343).

42595209 is a wasteful number, since it uses less digits than its factorization.

42595209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152708 (or 152705 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 42595209 is about 6526.5005171225. The cubic root of 42595209 is about 349.2370018222.

The spelling of 42595209 in words is "forty-two million, five hundred ninety-five thousand, two hundred nine".