268243860 has 24 divisors (see below), whose sum is σ = 751082976. Its totient is φ = 71531680.

The previous prime is 268243831. The next prime is 268243861. The reversal of 268243860 is 68342862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268243861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235306 + ... + 2235425.

It is an arithmetic number, because the mean of its divisors is an integer number (31295124).

Almost surely, 2^268243860 is an apocalyptic number.

268243860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268243860 is an abundant number, since it is smaller than the sum of its proper divisors (482839116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268243860 is a wasteful number, since it uses less digits than its factorization.

268243860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470743 (or 4470741 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 268243860 is about 16378.1519103958. The cubic root of 268243860 is about 644.9260656797.

The spelling of 268243860 in words is "two hundred sixty-eight million, two hundred forty-three thousand, eight hundred sixty".