257271042 has 32 divisors (see below), whose sum is σ = 588662784. Its totient is φ = 73429200.

The previous prime is 257271041. The next prime is 257271061. The reversal of 257271042 is 240172752.

It is not an unprimeable number, because it can be changed into a prime (257271041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46567 + ... + 51797.

It is an arithmetic number, because the mean of its divisors is an integer number (18395712).

Almost surely, 2^257271042 is an apocalyptic number.

257271042 is an abundant number, since it is smaller than the sum of its proper divisors (331391742).

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

257271042 is a wasteful number, since it uses less digits than its factorization.

257271042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 257271042 is about 16039.6708819103. The cubic root of 257271042 is about 636.0095475407.

It can be divided in two parts, 2572710 and 42, that added together give a palindrome (2572752).

The spelling of 257271042 in words is "two hundred fifty-seven million, two hundred seventy-one thousand, forty-two".