42285517 has 8 divisors (see below), whose sum is σ = 42853824. Its totient is φ = 41720448.

The previous prime is 42285497. The next prime is 42285521. The reversal of 42285517 is 71558224.

It is a happy number.

42285517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42285517 - 2⁷ = 42285389 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 (42285547) 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 7 ways as a sum of consecutive naturals, for example, 35778 + ... + 36940.

It is an arithmetic number, because the mean of its divisors is an integer number (5356728).

Almost surely, 2^42285517 is an apocalyptic number.

It is an amenable number.

42285517 is a deficient number, since it is larger than the sum of its proper divisors (568307).

42285517 is a wasteful number, since it uses less digits than its factorization.

42285517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 22400, while the sum is 34.

The square root of 42285517 is about 6502.7315029916. The cubic root of 42285517 is about 348.3885567282.

The spelling of 42285517 in words is "forty-two million, two hundred eighty-five thousand, five hundred seventeen".