57742878 has 32 divisors (see below), whose sum is σ = 117895680. Its totient is φ = 18849600.

The previous prime is 57742849. The next prime is 57742889. The reversal of 57742878 is 87824775.

It is a happy number.

57742878 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 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, 95778 + ... + 96378.

It is an arithmetic number, because the mean of its divisors is an integer number (3684240).

Almost surely, 2^57742878 is an apocalyptic number.

57742878 is an abundant number, since it is smaller than the sum of its proper divisors (60152802).

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

57742878 is a wasteful number, since it uses less digits than its factorization.

57742878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its digits is 878080, while the sum is 48.

The square root of 57742878 is about 7598.8734691400. The cubic root of 57742878 is about 386.5148123814.

The spelling of 57742878 in words is "fifty-seven million, seven hundred forty-two thousand, eight hundred seventy-eight".