42385317 has 16 divisors (see below), whose sum is σ = 61635840. Its totient is φ = 25751232.

The previous prime is 42385307. The next prime is 42385331. The reversal of 42385317 is 71358324.

It is not a de Polignac number, because 42385317 - 2⁶ = 42385253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42385307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3798 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (3852240).

Almost surely, 2^42385317 is an apocalyptic number.

It is an amenable number.

42385317 is a deficient number, since it is larger than the sum of its proper divisors (19250523).

42385317 is a wasteful number, since it uses less digits than its factorization.

42385317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13852.

The product of its digits is 20160, while the sum is 33.

The square root of 42385317 is about 6510.4006789137. The cubic root of 42385317 is about 348.6624240220.

The spelling of 42385317 in words is "forty-two million, three hundred eighty-five thousand, three hundred seventeen".