268658385 has 16 divisors (see below), whose sum is σ = 452477760. Its totient is φ = 135743040.

The previous prime is 268658317. The next prime is 268658387. The reversal of 268658385 is 583856862.

It is not a de Polignac number, because 268658385 - 2¹¹ = 268656337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268658387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471046 + ... + 471615.

It is an arithmetic number, because the mean of its divisors is an integer number (28279860).

Almost surely, 2^268658385 is an apocalyptic number.

It is an amenable number.

268658385 is a deficient number, since it is larger than the sum of its proper divisors (183819375).

268658385 is a wasteful number, since it uses less digits than its factorization.

268658385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942688.

The product of its digits is 2764800, while the sum is 51.

The square root of 268658385 is about 16390.8018412767. The cubic root of 268658385 is about 645.2581023410.

The spelling of 268658385 in words is "two hundred sixty-eight million, six hundred fifty-eight thousand, three hundred eighty-five".