268247845 has 16 divisors (see below), whose sum is σ = 343020528. Its totient is φ = 200678400.

The previous prime is 268247773. The next prime is 268247851. The reversal of 268247845 is 548742862.

It can be written as a sum of positive squares in 8 ways, for example, as 3437316 + 264810529 = 1854^2 + 16273^2 .

It is not a de Polignac number, because 268247845 - 2¹¹ = 268245797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268247795 and 268247804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295 + ... + 23395.

It is an arithmetic number, because the mean of its divisors is an integer number (21438783).

Almost surely, 2^268247845 is an apocalyptic number.

It is an amenable number.

268247845 is a deficient number, since it is larger than the sum of its proper divisors (74772683).

268247845 is a wasteful number, since it uses less digits than its factorization.

268247845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20280.

The product of its digits is 860160, while the sum is 46.

The square root of 268247845 is about 16378.2735659165. The cubic root of 268247845 is about 644.9292593131.

The spelling of 268247845 in words is "two hundred sixty-eight million, two hundred forty-seven thousand, eight hundred forty-five".