268286530 has 16 divisors (see below), whose sum is σ = 492028344. Its totient is φ = 105289600.

The previous prime is 268286471. The next prime is 268286539. The reversal of 268286530 is 35682862.

It can be written as a sum of positive squares in 4 ways, for example, as 213422881 + 54863649 = 14609^2 + 7407^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (268286539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252571 + ... + 253630.

Almost surely, 2^268286530 is an apocalyptic number.

268286530 is a deficient number, since it is larger than the sum of its proper divisors (223741814).

268286530 is a wasteful number, since it uses less digits than its factorization.

268286530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506261.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 268286530 is about 16379.4545086215. The cubic root of 268286530 is about 644.9602603563.

The spelling of 268286530 in words is "two hundred sixty-eight million, two hundred eighty-six thousand, five hundred thirty".