268513646 has 16 divisors (see below), whose sum is σ = 407761344. Its totient is φ = 132603744.

The previous prime is 268513621. The next prime is 268513669. The reversal of 268513646 is 646315862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51851 + ... + 56793.

It is an arithmetic number, because the mean of its divisors is an integer number (25485084).

Almost surely, 2^268513646 is an apocalyptic number.

268513646 is a deficient number, since it is larger than the sum of its proper divisors (139247698).

268513646 is a wasteful number, since it uses less digits than its factorization.

268513646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275.

The product of its digits is 207360, while the sum is 41.

The square root of 268513646 is about 16386.3859956978. The cubic root of 268513646 is about 645.1422044888.

The spelling of 268513646 in words is "two hundred sixty-eight million, five hundred thirteen thousand, six hundred forty-six".