57351728 has 40 divisors (see below), whose sum is σ = 133681920. Its totient is φ = 23284800.

The previous prime is 57351691. The next prime is 57351731. The reversal of 57351728 is 82715375.

It is a happy number.

57351728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 57351691 and 57351700.

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 7 ways as a sum of consecutive naturals, for example, 11348 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (3342048).

Almost surely, 2^57351728 is an apocalyptic number.

It is an amenable number.

57351728 is an abundant number, since it is smaller than the sum of its proper divisors (76330192).

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

57351728 is a wasteful number, since it uses less digits than its factorization.

57351728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26985 (or 26979 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 57351728 is about 7573.0923670585. The cubic root of 57351728 is about 385.6400843874.

The spelling of 57351728 in words is "fifty-seven million, three hundred fifty-one thousand, seven hundred twenty-eight".