268131684 has 24 divisors (see below), whose sum is σ = 662443488. Its totient is φ = 84119680.

The previous prime is 268131683. The next prime is 268131697. The reversal of 268131684 is 486131862.

It is a super-3 number, since 3×268131684³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (268131683) by changing a digit.

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, 656982 + ... + 657389.

It is an arithmetic number, because the mean of its divisors is an integer number (27601812).

Almost surely, 2^268131684 is an apocalyptic number.

It is an amenable number.

268131684 is an abundant number, since it is smaller than the sum of its proper divisors (394311804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268131684 is a wasteful number, since it uses less digits than its factorization.

268131684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314395 (or 1314393 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 268131684 is about 16374.7269900906. The cubic root of 268131684 is about 644.8361533224.

The spelling of 268131684 in words is "two hundred sixty-eight million, one hundred thirty-one thousand, six hundred eighty-four".