268445 has 8 divisors (see below), whose sum is σ = 328536. Its totient is φ = 210496.

The previous prime is 268439. The next prime is 268459. The reversal of 268445 is 544862.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 267289 = 34^2 + 517^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 268445 - 2⁸ = 268189 is a prime.

It is an Ulam number.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 242 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (41067).

2²⁶⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

268445 is a deficient number, since it is larger than the sum of its proper divisors (60091).

268445 is a wasteful number, since it uses less digits than its factorization.

268445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 7680, while the sum is 29.

The square root of 268445 is about 518.1167822026. The cubic root of 268445 is about 64.5087222545.

The spelling of 268445 in words is "two hundred sixty-eight thousand, four hundred forty-five".