268400275 has 48 divisors (see below), whose sum is σ = 394037280. Its totient is φ = 178790400.

The previous prime is 268400273. The next prime is 268400291. The reversal of 268400275 is 572004862.

It is not a de Polignac number, because 268400275 - 2¹ = 268400273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268400275.

It is not an unprimeable number, because it can be changed into a prime (268400273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 689781 + ... + 690169.

It is an arithmetic number, because the mean of its divisors is an integer number (8209110).

Almost surely, 2^268400275 is an apocalyptic number.

268400275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

268400275 is a deficient number, since it is larger than the sum of its proper divisors (125637005).

268400275 is a wasteful number, since it uses less digits than its factorization.

268400275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 268400275 is about 16382.9263259041. The cubic root of 268400275 is about 645.0513950593.

The spelling of 268400275 in words is "two hundred sixty-eight million, four hundred thousand, two hundred seventy-five".