268317684 has 36 divisors (see below), whose sum is σ = 703370304. Its totient is φ = 89438904.

The previous prime is 268317683. The next prime is 268317713. The reversal of 268317684 is 486713862.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268317683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137052 + ... + 138995.

It is an arithmetic number, because the mean of its divisors is an integer number (19538064).

Almost surely, 2^268317684 is an apocalyptic number.

It is an amenable number.

268317684 is an abundant number, since it is smaller than the sum of its proper divisors (435052620).

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

268317684 is a wasteful number, since it uses less digits than its factorization.

268317684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276066 (or 276052 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 268317684 is about 16380.4054894865. The cubic root of 268317684 is about 644.9852241072.

The spelling of 268317684 in words is "two hundred sixty-eight million, three hundred seventeen thousand, six hundred eighty-four".