268415543 has 16 divisors (see below), whose sum is σ = 312062976. Its totient is φ = 228428640.

The previous prime is 268415519. The next prime is 268415549. The reversal of 268415543 is 345514862.

It is not a de Polignac number, because 268415543 - 2¹⁰ = 268414519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268415497 and 268415506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268415549) 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, 605 + ... + 23177.

It is an arithmetic number, because the mean of its divisors is an integer number (19503936).

Almost surely, 2^268415543 is an apocalyptic number.

268415543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

268415543 is a deficient number, since it is larger than the sum of its proper divisors (43647433).

268415543 is a wasteful number, since it uses less digits than its factorization.

268415543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22654.

The product of its digits is 115200, while the sum is 38.

The square root of 268415543 is about 16383.3922921964. The cubic root of 268415543 is about 645.0636261173.

The spelling of 268415543 in words is "two hundred sixty-eight million, four hundred fifteen thousand, five hundred forty-three".