42212317 has 16 divisors (see below), whose sum is σ = 49420800. Its totient is φ = 35308080.

The previous prime is 42212299. The next prime is 42212333. The reversal of 42212317 is 71321224.

42212317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42212317 - 2⁷ = 42212189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42212347) 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 15 ways as a sum of consecutive naturals, for example, 73642 + ... + 74212.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 2^42212317 is an apocalyptic number.

It is an amenable number.

42212317 is a deficient number, since it is larger than the sum of its proper divisors (7208483).

42212317 is a wasteful number, since it uses less digits than its factorization.

42212317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 672, while the sum is 22.

The square root of 42212317 is about 6497.1006610641. The cubic root of 42212317 is about 348.1874100649.

The spelling of 42212317 in words is "forty-two million, two hundred twelve thousand, three hundred seventeen".