42331242 has 32 divisors (see below), whose sum is σ = 88073280. Its totient is φ = 13547520.

The previous prime is 42331231. The next prime is 42331277. The reversal of 42331242 is 24213324.

42331242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36138 + ... + 37290.

It is an arithmetic number, because the mean of its divisors is an integer number (2752290).

Almost surely, 2^42331242 is an apocalyptic number.

42331242 is an abundant number, since it is smaller than the sum of its proper divisors (45742038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42331242 is a wasteful number, since it uses less digits than its factorization.

42331242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398.

The product of its digits is 1152, while the sum is 21.

The square root of 42331242 is about 6506.2463832843. The cubic root of 42331242 is about 348.5140869286.

Adding to 42331242 its reverse (24213324), we get a palindrome (66544566).

The spelling of 42331242 in words is "forty-two million, three hundred thirty-one thousand, two hundred forty-two".