268426685 has 8 divisors (see below), whose sum is σ = 341059896. Its totient is φ = 202109440.

The previous prime is 268426681. The next prime is 268426687. The reversal of 268426685 is 586624862.

It can be written as a sum of positive squares in 4 ways, for example, as 18344089 + 250082596 = 4283^2 + 15814^2 .

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

It is not a de Polignac number, because 268426685 - 2² = 268426681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268426681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578896 + ... + 1579065.

It is an arithmetic number, because the mean of its divisors is an integer number (42632487).

Almost surely, 2^268426685 is an apocalyptic number.

It is an amenable number.

268426685 is a deficient number, since it is larger than the sum of its proper divisors (72633211).

268426685 is a wasteful number, since it uses less digits than its factorization.

268426685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157983.

The product of its digits is 1105920, while the sum is 47.

The square root of 268426685 is about 16383.7323281357. The cubic root of 268426685 is about 645.0725515809.

The spelling of 268426685 in words is "two hundred sixty-eight million, four hundred twenty-six thousand, six hundred eighty-five".