57242982 has 8 divisors (see below), whose sum is σ = 114485976. Its totient is φ = 19080992.

The previous prime is 57242981. The next prime is 57242989. The reversal of 57242982 is 28924275.

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

57242982 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 57242982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242981) 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, 4770243 + ... + 4770254.

It is an arithmetic number, because the mean of its divisors is an integer number (14310747).

Almost surely, 2^57242982 is an apocalyptic number.

57242982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57242982 is a wasteful number, since it uses less digits than its factorization.

57242982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540502.

The product of its digits is 80640, while the sum is 39.

The square root of 57242982 is about 7565.9091985035. The cubic root of 57242982 is about 385.3961896706.

The spelling of 57242982 in words is "fifty-seven million, two hundred forty-two thousand, nine hundred eighty-two".