268457 has 4 divisors (see below), whose sum is σ = 306816. Its totient is φ = 230100.

The previous prime is 268439. The next prime is 268459. The reversal of 268457 is 754862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268457 - 2¹⁰ = 267433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19169 + ... + 19182.

It is an arithmetic number, because the mean of its divisors is an integer number (76704).

2²⁶⁸⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

268457 is a deficient number, since it is larger than the sum of its proper divisors (38359).

268457 is an equidigital number, since it uses as much as digits as its factorization.

268457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38358.

The product of its digits is 13440, while the sum is 32.

The square root of 268457 is about 518.1283624740. The cubic root of 268457 is about 64.5096834609.

The spelling of 268457 in words is "two hundred sixty-eight thousand, four hundred fifty-seven".