268213634 has 16 divisors (see below), whose sum is σ = 448209720. Its totient is φ = 119521920.

The previous prime is 268213601. The next prime is 268213639. The reversal of 268213634 is 436312862.

It can be written as a sum of positive squares in 4 ways, for example, as 223951225 + 44262409 = 14965^2 + 6653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268213594 and 268213603.

It is not an unprimeable number, because it can be changed into a prime (268213639) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 177107 + ... + 178614.

Almost surely, 2^268213634 is an apocalyptic number.

268213634 is a deficient number, since it is larger than the sum of its proper divisors (179996086).

268213634 is a wasteful number, since it uses less digits than its factorization.

268213634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355765.

The product of its digits is 41472, while the sum is 35.

The square root of 268213634 is about 16377.2291307168. The cubic root of 268213634 is about 644.9018411208.

The spelling of 268213634 in words is "two hundred sixty-eight million, two hundred thirteen thousand, six hundred thirty-four".