257454 has 12 divisors (see below), whose sum is σ = 557856. Its totient is φ = 85812.

The previous prime is 257447. The next prime is 257459. The reversal of 257454 is 454752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257459) by changing a digit.

257454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 7134 + ... + 7169.

It is an arithmetic number, because the mean of its divisors is an integer number (46488).

2²⁵⁷⁴⁵⁴ is an apocalyptic number.

257454 is an abundant number, since it is smaller than the sum of its proper divisors (300402).

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

257454 is a wasteful number, since it uses less digits than its factorization.

257454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14311 (or 14308 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 257454 is about 507.3992510834. The cubic root of 257454 is about 63.6160277631.

It can be divided in two parts, 2574 and 54, that added together give a triangular number (2628 = T₇₂).

The spelling of 257454 in words is "two hundred fifty-seven thousand, four hundred fifty-four".