57820142 has 8 divisors (see below), whose sum is σ = 89721000. Its totient is φ = 27913144.

The previous prime is 57820141. The next prime is 57820151. The reversal of 57820142 is 24102875.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57820141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498392 + ... + 498507.

It is an arithmetic number, because the mean of its divisors is an integer number (11215125).

Almost surely, 2^57820142 is an apocalyptic number.

57820142 is a deficient number, since it is larger than the sum of its proper divisors (31900858).

57820142 is a wasteful number, since it uses less digits than its factorization.

57820142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996930.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 57820142 is about 7603.9556810913. The cubic root of 57820142 is about 386.6871301431.

The spelling of 57820142 in words is "fifty-seven million, eight hundred twenty thousand, one hundred forty-two".