268605233 has 4 divisors (see below), whose sum is σ = 289267188. Its totient is φ = 247943280.

The previous prime is 268605209. The next prime is 268605251. The reversal of 268605233 is 332506862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332506862 = 2 ⋅166253431.

It can be written as a sum of positive squares in 2 ways, for example, as 64915249 + 203689984 = 8057^2 + 14272^2 .

It is not a de Polignac number, because 268605233 - 2²² = 264410929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268605193 and 268605202.

It is not an unprimeable number, because it can be changed into a prime (268605263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10330958 + ... + 10330983.

It is an arithmetic number, because the mean of its divisors is an integer number (72316797).

Almost surely, 2^268605233 is an apocalyptic number.

It is an amenable number.

268605233 is a deficient number, since it is larger than the sum of its proper divisors (20661955).

268605233 is a wasteful number, since it uses less digits than its factorization.

268605233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20661954.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 268605233 is about 16389.1803638864. The cubic root of 268605233 is about 645.2155464130.

The spelling of 268605233 in words is "two hundred sixty-eight million, six hundred five thousand, two hundred thirty-three".