257046 has 8 divisors (see below), whose sum is σ = 514104. Its totient is φ = 85680.

The previous prime is 257017. The next prime is 257053. The reversal of 257046 is 640752.

It is a happy number.

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

257046 is an admirable number.

It is a super-2 number, since 2×257046² = 132145292232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 21415 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (64263).

2²⁵⁷⁰⁴⁶ is an apocalyptic number.

257046 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.

257046 is a wasteful number, since it uses less digits than its factorization.

257046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42846.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 257046 is about 506.9970414115. The cubic root of 257046 is about 63.5824048475.

Adding to 257046 its reverse (640752), we get a palindrome (897798).

The spelling of 257046 in words is "two hundred fifty-seven thousand, forty-six".