42318075 has 24 divisors (see below), whose sum is σ = 70160688. Its totient is φ = 22506880.

The previous prime is 42318061. The next prime is 42318077. The reversal of 42318075 is 57081324.

It is not a de Polignac number, because 42318075 - 2⁵ = 42318043 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42318077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41269 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (2923362).

Almost surely, 2^42318075 is an apocalyptic number.

42318075 is a deficient number, since it is larger than the sum of its proper divisors (27842613).

42318075 is a wasteful number, since it uses less digits than its factorization.

42318075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 42318075 is about 6505.2344308257. The cubic root of 42318075 is about 348.4779484437.

Adding to 42318075 its reverse (57081324), we get a palindrome (99399399).

The spelling of 42318075 in words is "forty-two million, three hundred eighteen thousand, seventy-five".