57842642 has 32 divisors (see below), whose sum is σ = 102453120. Its totient is φ = 24145920.

The previous prime is 57842639. The next prime is 57842647. The reversal of 57842642 is 24624875.

It is a junction number, because it is equal to n+sod(n) for n = 57842596 and 57842605.

It is not an unprimeable number, because it can be changed into a prime (57842647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74834 + ... + 75602.

It is an arithmetic number, because the mean of its divisors is an integer number (3201660).

Almost surely, 2^57842642 is an apocalyptic number.

57842642 is a deficient number, since it is larger than the sum of its proper divisors (44610478).

57842642 is a wasteful number, since it uses less digits than its factorization.

57842642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its digits is 107520, while the sum is 38.

The square root of 57842642 is about 7605.4350302925. The cubic root of 57842642 is about 386.7372818250.

The spelling of 57842642 in words is "fifty-seven million, eight hundred forty-two thousand, six hundred forty-two".