268516 has 6 divisors (see below), whose sum is σ = 469910. Its totient is φ = 134256.

The previous prime is 268507. The next prime is 268517. The reversal of 268516 is 615862.

It can be written as a sum of positive squares in only one way, i.e., 246016 + 22500 = 496^2 + 150^2 .

It is not an unprimeable number, because it can be changed into a prime (268517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33561 + ... + 33568.

2²⁶⁸⁵¹⁶ is an apocalyptic number.

It is an amenable number.

268516 is a deficient number, since it is larger than the sum of its proper divisors (201394).

268516 is a wasteful number, since it uses less digits than its factorization.

268516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67133 (or 67131 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 268516 is about 518.1852950442. The cubic root of 268516 is about 64.5144089756.

It can be divided in two parts, 2685 and 16, that added together give a triangular number (2701 = T₇₃).

The spelling of 268516 in words is "two hundred sixty-eight thousand, five hundred sixteen".