268461645 has 16 divisors (see below), whose sum is σ = 440016192. Its totient is φ = 139687040.

The previous prime is 268461629. The next prime is 268461667. The reversal of 268461645 is 546164862.

It is not a de Polignac number, because 268461645 - 2⁴ = 268461629 is a prime.

It is a super-3 number, since 3×268461645³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 268461597 and 268461606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217647 + ... + 218876.

It is an arithmetic number, because the mean of its divisors is an integer number (27501012).

Almost surely, 2^268461645 is an apocalyptic number.

It is an amenable number.

268461645 is a deficient number, since it is larger than the sum of its proper divisors (171554547).

268461645 is a wasteful number, since it uses less digits than its factorization.

268461645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436572.

The product of its digits is 276480, while the sum is 42.

The square root of 268461645 is about 16384.7992053610. The cubic root of 268461645 is about 645.1005552018.

The spelling of 268461645 in words is "two hundred sixty-eight million, four hundred sixty-one thousand, six hundred forty-five".