268478 has 16 divisors (see below), whose sum is σ = 466944. Its totient is φ = 113400.

The previous prime is 268459. The next prime is 268487. The reversal of 268478 is 874862.

It is a congruent number.

It is an unprimeable number.

268478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (29184).

2²⁶⁸⁴⁷⁸ is an apocalyptic number.

268478 is a deficient number, since it is larger than the sum of its proper divisors (198466).

268478 is a wasteful number, since it uses less digits than its factorization.

268478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its digits is 21504, while the sum is 35.

The square root of 268478 is about 518.1486273262. The cubic root of 268478 is about 64.5113655031.

Adding to 268478 its product of digits (21504), we get a palindrome (289982).

The spelling of 268478 in words is "two hundred sixty-eight thousand, four hundred seventy-eight".