268704468 has 18 divisors (see below), whose sum is σ = 679225274. Its totient is φ = 89568144.

The previous prime is 268704433. The next prime is 268704487. The reversal of 268704468 is 864407862.

It can be written as a sum of positive squares in only one way, i.e., 266930244 + 1774224 = 16338^2 + 1332^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×268704468² = 144404182246326048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3731971 + ... + 3732042.

Almost surely, 2^268704468 is an apocalyptic number.

It is an amenable number.

268704468 is an abundant number, since it is smaller than the sum of its proper divisors (410520806).

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

268704468 is a wasteful number, since it uses less digits than its factorization.

268704468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464023 (or 7464018 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 268704468 is about 16392.2075389497. The cubic root of 268704468 is about 645.2949939610.

The spelling of 268704468 in words is "two hundred sixty-eight million, seven hundred four thousand, four hundred sixty-eight".