42757678 has 16 divisors (see below), whose sum is σ = 64884960. Its totient is φ = 21131136.

The previous prime is 42757579. The next prime is 42757679. The reversal of 42757678 is 87675724.

42757678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42757679) 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, 104338 + ... + 104746.

It is an arithmetic number, because the mean of its divisors is an integer number (4055310).

Almost surely, 2^42757678 is an apocalyptic number.

42757678 is a deficient number, since it is larger than the sum of its proper divisors (22127282).

42757678 is a wasteful number, since it uses less digits than its factorization.

42757678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its digits is 658560, while the sum is 46.

The square root of 42757678 is about 6538.9355402848. The cubic root of 42757678 is about 349.6804648293.

The spelling of 42757678 in words is "forty-two million, seven hundred fifty-seven thousand, six hundred seventy-eight".