268509284 has 6 divisors (see below), whose sum is σ = 469891254. Its totient is φ = 134254640.

The previous prime is 268509281. The next prime is 268509299. The reversal of 268509284 is 482905862.

It can be written as a sum of positive squares in only one way, i.e., 268238884 + 270400 = 16378^2 + 520^2 .

It is not an unprimeable number, because it can be changed into a prime (268509281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33563657 + ... + 33563664.

It is an arithmetic number, because the mean of its divisors is an integer number (78315209).

Almost surely, 2^268509284 is an apocalyptic number.

It is an amenable number.

268509284 is a deficient number, since it is larger than the sum of its proper divisors (201381970).

268509284 is a wasteful number, since it uses less digits than its factorization.

268509284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67127325 (or 67127323 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 268509284 is about 16386.2528968645. The cubic root of 268509284 is about 645.1387110282.

The spelling of 268509284 in words is "two hundred sixty-eight million, five hundred nine thousand, two hundred eighty-four".