268213618 has 8 divisors (see below), whose sum is σ = 411676848. Its totient is φ = 130988004.

The previous prime is 268213601. The next prime is 268213639. The reversal of 268213618 is 816312862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559296 + ... + 1559467.

It is an arithmetic number, because the mean of its divisors is an integer number (51459606).

Almost surely, 2^268213618 is an apocalyptic number.

268213618 is a deficient number, since it is larger than the sum of its proper divisors (143463230).

268213618 is a wasteful number, since it uses less digits than its factorization.

268213618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118808.

The product of its digits is 27648, while the sum is 37.

The square root of 268213618 is about 16377.2286422337. The cubic root of 268213618 is about 644.9018282972.

The spelling of 268213618 in words is "two hundred sixty-eight million, two hundred thirteen thousand, six hundred eighteen".