268421079 has 4 divisors (see below), whose sum is σ = 357894776. Its totient is φ = 178947384.

The previous prime is 268421077. The next prime is 268421099. The reversal of 268421079 is 970124862.

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

It is not a de Polignac number, because 268421079 - 2¹ = 268421077 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 (268421077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44736844 + ... + 44736849.

It is an arithmetic number, because the mean of its divisors is an integer number (89473694).

Almost surely, 2^268421079 is an apocalyptic number.

268421079 is a deficient number, since it is larger than the sum of its proper divisors (89473697).

268421079 is an equidigital number, since it uses as much as digits as its factorization.

268421079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89473696.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 268421079 is about 16383.5612429044. The cubic root of 268421079 is about 645.0680608427.

The spelling of 268421079 in words is "two hundred sixty-eight million, four hundred twenty-one thousand, seventy-nine".