42782568 has 16 divisors (see below), whose sum is σ = 106956480. Its totient is φ = 14260848.

The previous prime is 42782563. The next prime is 42782581. The reversal of 42782568 is 86528724.

It is a happy number.

42782568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42782563) 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 3 ways as a sum of consecutive naturals, for example, 891280 + ... + 891327.

It is an arithmetic number, because the mean of its divisors is an integer number (6684780).

Almost surely, 2^42782568 is an apocalyptic number.

It is an amenable number.

42782568 is an abundant number, since it is smaller than the sum of its proper divisors (64173912).

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

42782568 is a wasteful number, since it uses less digits than its factorization.

42782568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782616 (or 1782612 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 42782568 is about 6540.8384783604. The cubic root of 42782568 is about 349.7483033938.

The spelling of 42782568 in words is "forty-two million, seven hundred eighty-two thousand, five hundred sixty-eight".