42307517 has 8 divisors (see below), whose sum is σ = 48395136. Its totient is φ = 36230832.

The previous prime is 42307501. The next prime is 42307537. The reversal of 42307517 is 71570324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42307517 - 2⁴ = 42307501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42307517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42307537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (6049392).

Almost surely, 2^42307517 is an apocalyptic number.

It is an amenable number.

42307517 is a deficient number, since it is larger than the sum of its proper divisors (6087619).

42307517 is a wasteful number, since it uses less digits than its factorization.

42307517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 42307517 is about 6504.4228798564. The cubic root of 42307517 is about 348.4489652712.

It can be divided in two parts, 42307 and 517, that added together give a palindrome (42824).

The spelling of 42307517 in words is "forty-two million, three hundred seven thousand, five hundred seventeen".