268508642 has 16 divisors (see below), whose sum is σ = 426995712. Its totient is φ = 126196800.

The previous prime is 268508623. The next prime is 268508677. The reversal of 268508642 is 246805862.

It is a self number, because there is not a number n which added to its sum of digits gives 268508642.

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, 24767 + ... + 33917.

It is an arithmetic number, because the mean of its divisors is an integer number (26687232).

Almost surely, 2^268508642 is an apocalyptic number.

268508642 is a deficient number, since it is larger than the sum of its proper divisors (158487070).

268508642 is a wasteful number, since it uses less digits than its factorization.

268508642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 268508642 is about 16386.2333072613. The cubic root of 268508642 is about 645.1381968568.

The spelling of 268508642 in words is "two hundred sixty-eight million, five hundred eight thousand, six hundred forty-two".