268115810 has 16 divisors (see below), whose sum is σ = 494380152. Its totient is φ = 104630400.

The previous prime is 268115767. The next prime is 268115831. The reversal of 268115810 is 18511862.

It can be written as a sum of positive squares in 4 ways, for example, as 129982801 + 138133009 = 11401^2 + 11753^2 .

It is a super-2 number, since 2×268115810² = 143772175143912200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 326561 + ... + 327380.

Almost surely, 2^268115810 is an apocalyptic number.

268115810 is a deficient number, since it is larger than the sum of its proper divisors (226264342).

268115810 is a wasteful number, since it uses less digits than its factorization.

268115810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653989.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 268115810 is about 16374.2422725450. The cubic root of 268115810 is about 644.8234278201.

The spelling of 268115810 in words is "two hundred sixty-eight million, one hundred fifteen thousand, eight hundred ten".