268620385 has 16 divisors (see below), whose sum is σ = 370157760. Its totient is φ = 185077440.

The previous prime is 268620379. The next prime is 268620389. The reversal of 268620385 is 583026862.

It is not a de Polignac number, because 268620385 - 2²¹ = 266523233 is a prime.

It is a super-2 number, since 2×268620385² = 144313822475096450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268620389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127482 + ... + 129571.

It is an arithmetic number, because the mean of its divisors is an integer number (23134860).

Almost surely, 2^268620385 is an apocalyptic number.

It is an amenable number.

268620385 is a deficient number, since it is larger than the sum of its proper divisors (101537375).

268620385 is a wasteful number, since it uses less digits than its factorization.

268620385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257088.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 268620385 is about 16389.6426135532. The cubic root of 268620385 is about 645.2276783709.

The spelling of 268620385 in words is "two hundred sixty-eight million, six hundred twenty thousand, three hundred eighty-five".