57861328 has 20 divisors (see below), whose sum is σ = 128121760. Its totient is φ = 24797664.

The previous prime is 57861317. The next prime is 57861337. The reversal of 57861328 is 82316875.

57861328 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 3 ways as a sum of consecutive naturals, for example, 258198 + ... + 258421.

It is an arithmetic number, because the mean of its divisors is an integer number (6406088).

Almost surely, 2^57861328 is an apocalyptic number.

It is an amenable number.

57861328 is an abundant number, since it is smaller than the sum of its proper divisors (70260432).

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

57861328 is a wasteful number, since it uses less digits than its factorization.

57861328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516634 (or 516628 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 57861328 is about 7606.6633946823. The cubic root of 57861328 is about 386.7789223550.

The spelling of 57861328 in words is "fifty-seven million, eight hundred sixty-one thousand, three hundred twenty-eight".