268378379 has 4 divisors (see below), whose sum is σ = 273442176. Its totient is φ = 263314584.

The previous prime is 268378361. The next prime is 268378381. The reversal of 268378379 is 973873862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268378379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 5063743 = 268378379 / (2 + 6 + 8 + 3 + 7 + 8 + 3 + 7 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268378379.

It is not an unprimeable number, because it can be changed into a prime (268378309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2531819 + ... + 2531924.

It is an arithmetic number, because the mean of its divisors is an integer number (68360544).

Almost surely, 2^268378379 is an apocalyptic number.

268378379 is a deficient number, since it is larger than the sum of its proper divisors (5063797).

268378379 is an equidigital number, since it uses as much as digits as its factorization.

268378379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063796.

The product of its digits is 3048192, while the sum is 53.

The square root of 268378379 is about 16382.2580555917. The cubic root of 268378379 is about 645.0338535603.

It can be divided in two parts, 2683783 and 79, that added together give a palindrome (2683862).

The spelling of 268378379 in words is "two hundred sixty-eight million, three hundred seventy-eight thousand, three hundred seventy-nine".