268648064 has 16 divisors (see below), whose sum is σ = 535197570. Its totient is φ = 134323968.

The previous prime is 268648019. The next prime is 268648069. The reversal of 268648064 is 460846862.

It can be written as a sum of positive squares in only one way, i.e., 184742464 + 83905600 = 13592^2 + 9160^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (268648069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049279 + ... + 1049534.

Almost surely, 2^268648064 is an apocalyptic number.

It is an amenable number.

268648064 is a deficient number, since it is larger than the sum of its proper divisors (266549506).

268648064 is an equidigital number, since it uses as much as digits as its factorization.

268648064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098827 (or 2098815 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 268648064 is about 16390.4869970358. The cubic root of 268648064 is about 645.2498393144.

The spelling of 268648064 in words is "two hundred sixty-eight million, six hundred forty-eight thousand, sixty-four".