42318299 has 4 divisors (see below), whose sum is σ = 42336480. Its totient is φ = 42300120.

The previous prime is 42318247. The next prime is 42318313. The reversal of 42318299 is 99281324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42318299 - 2⁸ = 42318043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42318209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4979 + ... + 10460.

It is an arithmetic number, because the mean of its divisors is an integer number (10584120).

Almost surely, 2^42318299 is an apocalyptic number.

42318299 is a deficient number, since it is larger than the sum of its proper divisors (18181).

42318299 is a wasteful number, since it uses less digits than its factorization.

42318299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18180.

The product of its digits is 31104, while the sum is 38.

The square root of 42318299 is about 6505.2516477074. The cubic root of 42318299 is about 348.4785633025.

It can be divided in two parts, 423 and 18299, that multiplied together give a palindrome (7740477).

The spelling of 42318299 in words is "forty-two million, three hundred eighteen thousand, two hundred ninety-nine".