257324 has 12 divisors (see below), whose sum is σ = 470064. Its totient is φ = 123024.

The previous prime is 257321. The next prime is 257339. The reversal of 257324 is 423752.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 257324.

It is not an unprimeable number, because it can be changed into a prime (257321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307 + ... + 1490.

It is an arithmetic number, because the mean of its divisors is an integer number (39172).

2²⁵⁷³²⁴ is an apocalyptic number.

It is an amenable number.

257324 is a deficient number, since it is larger than the sum of its proper divisors (212740).

257324 is a wasteful number, since it uses less digits than its factorization.

257324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824 (or 2822 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 257324 is about 507.2711306589. The cubic root of 257324 is about 63.6053184377.

The spelling of 257324 in words is "two hundred fifty-seven thousand, three hundred twenty-four".