268381213 has 4 divisors (see below), whose sum is σ = 282506560. Its totient is φ = 254255868.

The previous prime is 268381187. The next prime is 268381231. The reversal of 268381213 is 312183862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312183862 = 2 ⋅156091931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268381213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268387213) by changing a digit.

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, 7062645 + ... + 7062682.

It is an arithmetic number, because the mean of its divisors is an integer number (70626640).

Almost surely, 2^268381213 is an apocalyptic number.

It is an amenable number.

268381213 is a deficient number, since it is larger than the sum of its proper divisors (14125347).

268381213 is a wasteful number, since it uses less digits than its factorization.

268381213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125346.

The product of its digits is 13824, while the sum is 34.

The square root of 268381213 is about 16382.3445513760. The cubic root of 268381213 is about 645.0361240109.

The spelling of 268381213 in words is "two hundred sixty-eight million, three hundred eighty-one thousand, two hundred thirteen".