257842262 has 8 divisors (see below), whose sum is σ = 386878800. Its totient is φ = 128882664.

The previous prime is 257842261. The next prime is 257842309. The reversal of 257842262 is 262248752.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257842261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9962 + ... + 24797.

It is an arithmetic number, because the mean of its divisors is an integer number (48359850).

Almost surely, 2^257842262 is an apocalyptic number.

257842262 is a deficient number, since it is larger than the sum of its proper divisors (129036538).

257842262 is a wasteful number, since it uses less digits than its factorization.

257842262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38470.

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

The square root of 257842262 is about 16057.4674840088. The cubic root of 257842262 is about 636.4799111726.

The spelling of 257842262 in words is "two hundred fifty-seven million, eight hundred forty-two thousand, two hundred sixty-two".