268347845 has 16 divisors (see below), whose sum is σ = 328364400. Its totient is φ = 210470400.

The previous prime is 268347841. The next prime is 268347869. The reversal of 268347845 is 548743862.

It can be written as a sum of positive squares in 8 ways, for example, as 93103201 + 175244644 = 9649^2 + 13238^2 .

It is not a de Polignac number, because 268347845 - 2² = 268347841 is a prime.

It is a super-2 number, since 2×268347845² = 144021131832288050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268347845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268347841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105185 + ... + 107705.

It is an arithmetic number, because the mean of its divisors is an integer number (20522775).

Almost surely, 2^268347845 is an apocalyptic number.

It is an amenable number.

268347845 is a deficient number, since it is larger than the sum of its proper divisors (60016555).

268347845 is a wasteful number, since it uses less digits than its factorization.

268347845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936.

The product of its digits is 1290240, while the sum is 47.

The square root of 268347845 is about 16381.3261062711. The cubic root of 268347845 is about 645.0093903246.

The spelling of 268347845 in words is "two hundred sixty-eight million, three hundred forty-seven thousand, eight hundred forty-five".