57729842 has 16 divisors (see below), whose sum is σ = 89519640. Its totient is φ = 27900288.

The previous prime is 57729799. The next prime is 57729853. The reversal of 57729842 is 24892775.

57729842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 47623801 + 10106041 = 6901^2 + 3179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57729793 and 57729802.

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, 9134 + ... + 14102.

Almost surely, 2^57729842 is an apocalyptic number.

57729842 is a deficient number, since it is larger than the sum of its proper divisors (31789798).

57729842 is a wasteful number, since it uses less digits than its factorization.

57729842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165.

The product of its digits is 282240, while the sum is 44.

The square root of 57729842 is about 7598.0156620002. The cubic root of 57729842 is about 386.4857237360.

The spelling of 57729842 in words is "fifty-seven million, seven hundred twenty-nine thousand, eight hundred forty-two".