268440843 has 16 divisors (see below), whose sum is σ = 407437056. Its totient is φ = 155617440.

The previous prime is 268440833. The next prime is 268440859. The reversal of 268440843 is 348044862.

It is not a de Polignac number, because 268440843 - 2⁴ = 268440827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268440803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176080 + ... + 177597.

It is an arithmetic number, because the mean of its divisors is an integer number (25464816).

Almost surely, 2^268440843 is an apocalyptic number.

268440843 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

268440843 is a deficient number, since it is larger than the sum of its proper divisors (138996213).

268440843 is a wasteful number, since it uses less digits than its factorization.

268440843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353714.

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 268440843 is about 16384.1643973686. The cubic root of 268440843 is about 645.0838926995.

The spelling of 268440843 in words is "two hundred sixty-eight million, four hundred forty thousand, eight hundred forty-three".