257848 has 16 divisors (see below), whose sum is σ = 488880. Its totient is φ = 127488.

The previous prime is 257837. The next prime is 257857. The reversal of 257848 is 848752.

257848 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×257848² = 132971182208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240 + ... + 1432.

It is an arithmetic number, because the mean of its divisors is an integer number (30555).

2²⁵⁷⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

257848 is a deficient number, since it is larger than the sum of its proper divisors (231032).

257848 is a wasteful number, since it uses less digits than its factorization.

257848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 257848 is about 507.7873570699. The cubic root of 257848 is about 63.6484632528.

The spelling of 257848 in words is "two hundred fifty-seven thousand, eight hundred forty-eight".